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Joining polyolefinic members by fusion
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Patent number 4,987,018
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Issue date Jan 22, 1991
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British Gas PLC
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Alan J. Dickinson
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Joining polyolefinic members by fusion
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Patent number 4,963,421
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Issue date Oct 16, 1990
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British Gas PLC
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Alan J. Dickinson
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Bead stripping device
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Patent number 4,727,650
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Issue date Mar 1, 1988
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British Gas Corporation
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Alan J. Dickinson
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Pipe scraper
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Patent number 4,694,574
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Issue date Sep 22, 1987
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British Gas Corporation
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Alan J. Dickinson
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR