-
6
Common metals and their alloys; metal building materials; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery, small items of metal hardware; pipes and tubes of metal; safes; goods of common metal not included in other classes; ores.
flow control valves, pressure reducing valves, pressure relief valves, dual unit valves consisting of pressure reducing and pressure relief valves, water mixing valves, check valves pressure actuated to close and gravity actuated to open, air charger and tank drainer valves, [ valves for use with water heating coils arranged to reverse the flow through and backwash the coils when a faucet is opened, ] pipe fittings for hot water heating systems, boiler and expansion tank fittings for hot water heating systems each including separate air and water passages, [ tank hangers, ] relief valve strainers, and combination units for hot water heating systems including a pressure relief valve, a safety high limit switch and a pressure reducing valve conditioned to supply cold water to the system under stated conditions
-
7
Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs.
flow control valves, pressure reducing valves, pressure relief valves, dual unit valves consisting of pressure reducing and pressure relief valves, water mixing valves, check valves pressure actuated to close and gravity actuated to open, air charger and tank drainer valves, [ valves for use with water heating coils arranged to reverse the flow through and backwash the coils when a faucet is opened, ] pipe fittings for hot water heating systems, boiler and expansion tank fittings for hot water heating systems each including separate air and water passages, [ tank hangers, ] relief valve strainers, and combination units for hot water heating systems including a pressure relief valve, a safety high limit switch and a pressure reducing valve conditioned to supply cold water to the system under stated conditions
-
11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
flow control valves, pressure reducing valves, pressure relief valves, dual unit valves consisting of pressure reducing and pressure relief valves, water mixing valves, check valves pressure actuated to close and gravity actuated to open, air charger and tank drainer valves, [ valves for use with water heating coils arranged to reverse the flow through and backwash the coils when a faucet is opened, ] pipe fittings for hot water heating systems, boiler and expansion tank fittings for hot water heating systems each including separate air and water passages, [ tank hangers, ] relief valve strainers, and combination units for hot water heating systems including a pressure relief valve, a safety high limit switch and a pressure reducing valve conditioned to supply cold water to the system under stated conditions
-
17
Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal.
flow control valves, pressure reducing valves, pressure relief valves, dual unit valves consisting of pressure reducing and pressure relief valves, water mixing valves, check valves pressure actuated to close and gravity actuated to open, air charger and tank drainer valves, [ valves for use with water heating coils arranged to reverse the flow through and backwash the coils when a faucet is opened, ] pipe fittings for hot water heating systems, boiler and expansion tank fittings for hot water heating systems each including separate air and water passages, [ tank hangers, ] relief valve strainers, and combination units for hot water heating systems including a pressure relief valve, a safety high limit switch and a pressure reducing valve conditioned to supply cold water to the system under stated conditions
-
20
Furniture, mirrors, picture frames; goods (not included in other classes) of wood, cork, reed, cane, wicker, horn, bone, ivory, whalebone, shell, amber, mother-of-pearl, meerschaum and substitutes for all these materials, or of plastics
flow control valves, pressure reducing valves, pressure relief valves, dual unit valves consisting of pressure reducing and pressure relief valves, water mixing valves, check valves pressure actuated to close and gravity actuated to open, air charger and tank drainer valves, [ valves for use with water heating coils arranged to reverse the flow through and backwash the coils when a faucet is opened, ] pipe fittings for hot water heating systems, boiler and expansion tank fittings for hot water heating systems each including separate air and water passages, [ tank hangers, ] relief valve strainers, and combination units for hot water heating systems including a pressure relief valve, a safety high limit switch and a pressure reducing valve conditioned to supply cold water to the system under stated conditions
-
21
Household or kitchen utensils and containers; combs and sponges; brushes (except paint brushes); brush-making materials; articles for cleaning purposes; steelwool; unworked or semi-worked glass (except glass used in building); glassware, porcelain and earthenware not included in other classes.
flow control valves, pressure reducing valves, pressure relief valves, dual unit valves consisting of pressure reducing and pressure relief valves, water mixing valves, check valves pressure actuated to close and gravity actuated to open, air charger and tank drainer valves, [ valves for use with water heating coils arranged to reverse the flow through and backwash the coils when a faucet is opened, ] pipe fittings for hot water heating systems, boiler and expansion tank fittings for hot water heating systems each including separate air and water passages, [ tank hangers, ] relief valve strainers, and combination units for hot water heating systems including a pressure relief valve, a safety high limit switch and a pressure reducing valve conditioned to supply cold water to the system under stated conditions