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Method for blow molding plastic articles
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Patent number 4,151,250
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Issue date Apr 24, 1979
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Owens-Illinois, Inc.
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James W. Barry
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Method for making plastic articles
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Patent number 4,097,570
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Issue date Jun 27, 1978
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Owens-Illinois, Inc.
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Andrew C. Dickson
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Method for heating plastic articles
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Patent number 4,079,104
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Issue date Mar 14, 1978
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Owens-Illinois, Inc.
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Andrew C. Dickson
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL