Electrically-weldable couplings, accessories of metal or mainly of metal combined with plastic materials for electrically-weldable couplings, namely connection sockets with closure systems, connection sockets with built-in perforators, on-load connection sockets, stoppers for on-load connection sockets, transition sleeves of metal or mainly of metal combined with plastic materials, transition nipples, transition sleeves of metal or mainly of metal combined with plastic materials, welding rings; flanges of metal; brackets of metal for gutters and pegs of metal for fastening pipe collars to building walls; gutters of metal, gutter downpipes, s-shaped gutter pipes, gutter coupling flanges, gutter bases, gutter flow sleeves, tapered inlets for gutters, rainwater gutter hooks; pipe collars of metal, particularly for gutter downpipes; products made of titanium, zircon, tantalum or ferrosilicon, namely pipes and stop valves; accessories of metal or mainly of metal combined with plastic materials for the above goods, namely couplings and sleeves, slabs, stoppers; valves of high corrosion-resistance alloys and metals for the chemicals industry and related industries; metal building materials for prefabricated sanitary blocks and compartments; on-load connection sockets.

Boring and clamping apparatus (machines) for mounting and holding connection sockets with built-in perforators and on-load connection sockets; ceramic or metal-coated ceramic products, namely ball valves and valve seats, pistons and plunger pistons for piston machines as well as compressors, centrifugal pumps and components thereof for transporting corrosive liquids, cutting edges for cutting tools, cones and guides for traction for the manufacture of textile fibers and iron wire, scraper seals for pumps and vessels for mixing machines; components of ceramic subject to sizeable thermal and mechanical stress for the construction of machines and apparatus for the chemicals industry; fuel pumps for motors and engines (except for automobiles); steam pumps; compressed air pumps; rotary pumps; centrifugal pumps; lubricating pumps (except for automobiles); vacuum pumps; centrifugal pumps, pumps for transporting liquids; apparatus and components of ceramic materials and of high corrosion-resistance alloys and metals for the chemicals industry and related industries; rollers of ceramic materials; rollers of ceramic materials not metalized having high resistance to wear for milling machines and for installations for artificial fibers; products made of titanium, zircon, tantalum or ferrosilicon, namely stop apparatus and valves, pumps; pistons for pumps; ball valves and valve seats for high pressures; plain bearings of aluminum oxide; drawing cones for extra-fine wires; ceramic parts of aluminum oxide for the textile industry particularly, with thread guides, guide rollers, eyelets for synthetic textile fibers; profiles and coatings made of aluminum oxide for paper machines; basins and bodies for spraying machines made of aluminum-rich oxides for spraying color pigments, for the pharmaceutical industry and for metallurgy; apparatus of ceramic materials, namely corrosion resistant pumps; ceramic products, namely corrosion resistant faucets and valves (machine parts).

Portable apparatus for mounting electrically-weldable couplings; boring and clamping devices (hand-operated) for mounting and holding connection sockets with built-in perforators and on-load connection sockets.

Brazed rectifier housings for power diodes and thyristors of ceramic, built-in and in differential pressure switch versions; vacuum sealed versions of metal/ceramic composites for evaporation installations, electron accelerators and ionisation chambers; leadthroughs for capacitors and transformers; ceramic or metal-coated ceramic articles, namely housings for electrical and electronic circuits and supports for circuits (substrates) of ceramic materials for applications relating to electricity and electronics as well as housings for rectifiers; electrical welding units; remote control equipment and connectors for electrical welding units; gauges for pressure and oxygen partial pressure; high thermal resistance ceramic leadthroughs for applications relating to electricity and electronics; connection strips and terminal blocks of plastic materials; fire protection trap doors of ceramics, stoneware or plastics; laboratory equipment of ceramic materials, namely coverings for large tables, work surfaces for laboratories; ceramic products, namely corrosion resistant laboratory work surfaces; components of ceramic, metals and metal alloys having high resistance to corrosion being part of apparatus for chemistry; ceramics components subject to sizeable mechanical and thermal stress being part of apparatus for chemistry.

Components of ceramic subject to sizeable mechanical and thermal stress for building apparatus for the chemicals industry and nuclear technology; apparatus, installations and components cof ceramic materials and high corrosion-resistance alloys and metals for the chemicals industry and related industries; heat exchangers; pipes for sewage water containing high concentrations of chemicals (sanitary installation components) as well as vents for air and ventilation, air dampers, ventilators; apparatus made of titanium, zircon, tantalum or ferrosilicon, namely heat exchangers, shakers and heating candles; components of ceramics for atomic reactors; piping and fittings for water; profiled, square tubes and extruded technical parts of plastics for the sanitation industry; apparatus of ceramic materials, namely heat exchangers and corrosion resistant reaction containers; ceramic products, namely corrosion resistant faucets; corrosion resistant laboratory sinks; sanitary installations made of a steel structure incorporating water lines and faucets; pressure resistant faucets of ceramic.

Electrically-weldable couplings, accessories of plastic materials or mainly of plastic materials combined with metal for electrically-weldable couplings, namely connection sockets, stoppers of on-load connection sockets, transition sleeves, transition fittings; pipes for electrically-weldable couplings, pipe components, elbow fittings, transition fittings and couplings for pipes, pipe joints; rubber seals for gutter couplings; seals for clearance between two gutter brackets mounted on the drip stone of a building; metal-coated insulating rings for microwave transmitters; composite metal-ceramic insulating rings and plates for printed circuits and potentiometers and potentiometers; composite metal-ceramic sliding rings for pump shaft seals for chemical pumps, mixing machines and washing machines; ceramic or metal-coated ceramic electrical insulators; plastics couplings for metal pipe connections; plastics pipes in the form of semi-finished products; thermoplastic slabs for covering pipes; liquid-impervious plastic films and slabs for covering tanks; accessories for a range of pipes, namely of plastics and/or rubber as well as metal; ceramic products, namely corrosion-resistant piping systems as well as connections therefor, plastics coating components (in the form of semi-finished pipe products (endpieces), gutters and poured-in-place concrete structures for discharging water); accessories of plastic materials and mainly of plastic materials combined with metal for the above goods, namely junctions and couplings, connections, covers, stoppers.

Gutters, not of metal, gutter downpipes, s-shaped gutter pipes, gutter bases, gutter flow sleeves, tapered inlets for gutters, rainwater gutter hooks; ceramic components for vacuum repairs; fireproofing and corrosion-resistant ventilating ducts and elbow fittings of plastics; building elements of plastic materials for buildings and public works as well as for cold water, hot water and heating systems, namely pipes, pipe components, elbow fittings, junctions for pipes, transition pipe sleeves, household discharge pipes for protection against fire, pipes and elbow fittings of plastics for underground ducts and pipes; square pipes, injection-molded plastics shaped parts and elbow fittings, particularly for the building industry; ceramic products, namely anti-corrosion and fireproofing ventilating ducts; tiling surfaces for sanitary blocks and prefabricated sanitary cells; materials for making ceramic articles, namely ceramic materials in powder form; built-in sinks, vats for rinsing and runoff, runoff sinks of ceramic for laboratory use, corrosion resistant laboratory sinks.

Flanges of plastic materials; non-metallic pipe collars, particularly for gutter downpipes; ceramic or metal-coated ceramic articles, namely valves for chemical processes and for mixers for liquids; valves of ceramic for the chemicals industry and related industries; ceramic articles, namely corrosion resistant valves; connection sockets with closing devices, built-in or pressurised perforator, welding rings of plastic materials or of plastic materials combined with metal; on-load connection sockets.

Materials and articles; all for use in building and civil engineering construction; pipes, tubes and gutters and connectors, couplings and joints therefor; valves; prefabricated buildings; structures; cabinets and cubicles; electrofusion pipe fittings; materials for use in welding or for use in electrofusion; parts and fittings for all the aforesaid goods; all included in Class 6.

Industrial machines; machines for use in industry; drilling machines; machine tools; tools for machines; machining tools and adjusting tools; engines; compressors, pumps; cutters; textile machines; machines and apparatus for the chemical industry; petrol pumps for engines; grinding apparatus, instruments and machines; rollers of wear-resistant and metal-free ceramic material; welding and electrofusion apparatus and components; parts and fittings for all the aforesaid goods; all included in Class 7.

Hand tools; hand instruments; manually operated clamps in the nature of hand tools; tools for cutting and tools for tapping, all for hand tools; manually operated apparatus and instruments for mounting welding apparatus; parts and fittings for all the aforesaid goods; all included in Class 8.

Electrical and electronic components; cases, housings, boxes, and conduits, all for electrical and/or electronic components or circuits; rectifier housings; conduits for electric and electronic applications or for use in or with evaporation plants, particle accelerators and/or ionisation chambers; conduits and bushings for condensors and transformers; substrates; connector and terminal mouldings; metallized insulator rings for waveguide tubes; insulator discs and sheets, all for printed circuits and potentiometers; ceramic materials for use as components of measuring, detecting and sensing apparatus and instruments; gas sensors; oxygen pressure and oxygen partial pressure measuring devices; welding and electrofusion apparatus and components, control apparatus therefor and plug and socket connections therefor; laboratory apparatus, instruments and furniture; bench covers, bench tops, sinks, all for use in laboratories and whether or not corrosion resistant; parts and fittings for all the aforesaid goods; all included in Class 9.

Surgical, medical, dental and veterinary apparatus and instruments; endoprostheses; artificial limbs, eyes and teeth; orthopaedic apparatus and instruments; tubes, implants and valves, all being for medical, surgical or veterinary use; parts and fittings for all the aforesaid goods; artificial skin (skin replacing membranes); all included in Class 10.

Apparatus, instruments and installations, all for heating, cooling, ventilating,water supply and sanitary purposes; nuclear reactors; heat exchangers; ceramic components for use in chemical, electrical, gas, thermal and nuclear apparatus, instruments and installations; parts and fittings for all the aforesaid goods; all included in Class 11.

Materials in the form of films, sheets, blocks, rods, tubes, pipes, shaped sections and shaped parts, all made wholly or principally of non-metallic materials and all for use in manufacture; articles made wholly or principally from the aforesaid goods; gaskets; articles made wholly or principally of plastics and metal (the plastics predominating); parts and fittings for all the aforesaid goods; seals; packing, stopping and insulating materials; electric insulators; thermoplastic extruded profiles for use in lining tanks and pipes; all included in Class 17.

Materials and articles for use in building and civil engineering construction; building elements; frameworks for buildings and walls; pipes, tubes and gutters and connectors, couplings and joints therefor; prefabricated walling; prefabricated buildings; ceramic materials; parts and fittings for all the aforesaid goods; all included in Class 19.

Articles made wholly or principally of non-metallic materials for use in building; fixing devices of plastics; flanges, ties, clips, clamps, fasteners and securing devices; non-metallic valves; parts and fittings for all the aforesaid goods; all included in Class 20.

Installation, maintenance, repair and reconditioning of pumps, valves, armatures and of parts and fittings for all the aforesaid goods; contract production of castings; all included in Class 37.