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WO2004084369A1
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A conduit unit formed from two identical parts
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US6460574B2
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Sewer pipe structures and their method of construction
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GB0011820D0
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Sewer pipe structures and their method of construction
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GB9918157D0
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Improvements in tape-wound pipes
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GB9714803D0
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Improved drainage gully pot
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GB9609527D0
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A pipe,a method for constructing the pipe and a method of lining or re-lining a sewer using the pipe as a liner
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GB9419276D0
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A seal and a method of joining a first conduit to a second conduit which uses the seal
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