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Harold Gell, P.C.

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  • Silver Spring, MD, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Uniformly expandable mold and method
    • Patent number 5,314,653
    • Issue date May 24, 1994
    • Harold Gell, P.C.
    • Constantine Haralambopoulos
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

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