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Method for forming heat seals
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Patent number 4,463,542
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Issue date Aug 7, 1984
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Package Machinery Company
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Eddie L. Greenawalt
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Sealing head
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Patent number 4,350,003
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Issue date Sep 21, 1982
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Package Machinery Company
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Eddie L. Greenawalt
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Form, fill and seal industrial bag machine
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Patent number 4,073,121
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Issue date Feb 14, 1978
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The Dow Chemical Company
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Eddie L. Greenawalt
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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