TREA

Mark A. Hayner

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  • Manchester, NH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pneumatic time delay valve
    • Patent number 4,716,930
    • Issue date Jan 5, 1988
    • Sanders Associates, Inc.
    • Martin R. Richmond
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Pneumatic time delay valve
    • Patent number 4,646,644
    • Issue date Mar 3, 1987
    • Sanders Associates, Inc.
    • Martin R. Richmond
    • F42 - AMMUNITION BLASTING