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Improvements relating to control valves
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Improvements relating to water heating systems
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Improvements relating to Fluid Flow Control Valves
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Improvements in pipe unions
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Improvements in pipe fittings
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Improvements in or relating to pipe end fittings primarily intended for connection to synthetic plastic pipes
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Compression pipe fittings
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Improvements in or relating to hose end fittings
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Improvements in or relating to hose end fittings
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Improvements in pipe couplings
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Improvements relating to pipe couplings
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