TREA

Ronald A. Walter

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  • Wilmington, DE, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sealed tensiometer
    • Patent number 4,912,983
    • Issue date Apr 3, 1990
    • E. I. Du Pont de Nemours and Company
    • Ronald A. Walter
    • G01 - MEASURING TESTING