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Henry G. Heck

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  • Buhl, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Preforms for molding processes
    • Patent number 5,071,711
    • Issue date Dec 10, 1991
    • The Dow Chemical Company
    • Henry G. Heck
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method for preparing preforms for molding processes
    • Patent number 4,992,228
    • Issue date Feb 12, 1991
    • The Dow Chemical Company
    • Henry G. Heck
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL