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Plug lid for a container
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Patent number 4,799,602
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Issue date Jan 24, 1989
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Metal Box p.l.c.
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Malcolm G. Collins
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Method of spin-welding
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Patent number 4,758,392
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Issue date Jul 19, 1988
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Metal Box p.l.c.
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Malcolm G. Collins
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Method of and apparatus for spin-welding
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Patent number 4,741,788
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Issue date May 3, 1988
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Metal Box p.l.c.
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Kenneth R. Clark
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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