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Extruder head for elastomeric material
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Patent number 5,221,541
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Issue date Jun 22, 1993
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Bridgestone/Firestone, Inc.
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Gaetan Arbour
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Vented kneading pin for extruder
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Patent number 5,219,589
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Issue date Jun 15, 1993
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Bridgestone/Firestone, Inc.
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Gerardo P. Elia
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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