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GB675082A
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Improvements in pipe couplings
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GB686275A
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Improvements in pipe couplings
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GB681304A
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Improvements in pipe couplings
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GB679584A
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Improvements in pipe couplings
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GB661465A
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Improvements in pipe couplings
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GB652429A
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Improvements relating to pipe couplings
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GB629743A
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Improvements in pipe couplings
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GB618261A
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Improvements in coupling unions for pipes
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GB629652A
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A new or improved packing ring for use in pipe couplings
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GB576520A
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Improvements in pipe couplings
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GB572001A
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Improvements in or relating to couplings for hoses, tubes, pipes and the like
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GB491296A
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An improved drain trap
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GB490115A
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Improvements in pipe joints
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GB444817A
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Improvements in the jointing of pipes within unions and the like
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IE11942L
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Pipe joints
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GB369860A
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Improvements in pipe joints
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GB263430A
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Improvement relating to pipe and like screw-joints or connections
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GB230240A
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Improvements in coupling devices for electric cables and the like
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