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US3522122A
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Reinforced plastic pipe
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US3481369A
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Reinforced plastic pipe
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GB815423A
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Method for fabricating pipe
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GB792222A
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Improvements in pipe structure
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GB795991A
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Improvements in plastic pipe
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GB771590A
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Improvements in manufacture of plastic pipe
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GB750768A
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Improved method and apparatus for fabricating pipe
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GB709251A
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Improvements in manufacture of pipe
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GB709252A
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Improvements in manufacture of pipe
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GB713707A
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Improvements in the manufacture of pipes
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GB248186A
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Improved process of and means for the fractional distillation of hydrocarbons
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Manufacture of pipe
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CA575758A
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Glass fibre reinforced plastic pipe
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CA560513A
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Manufacture of plastic pipe
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CA529249A
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Method and apparatus for manufacturing plastic pipe
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CA542890A
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Manufacture of pipe
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CA560512A
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Method and apparatus for fabricating pipe
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CA612517A
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Pipe structure
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CA592640A
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Method and apparatus for fabricating pipe
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