TREA

Dennis I. Shifflett

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  • Mt. Clemens, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Manifold
    • Patent number 4,631,212
    • Issue date Dec 23, 1986
    • Al-Ko Products, Inc.
    • David C. Shifflett
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Teaching apparatus
    • Patent number 4,592,731
    • Issue date Jun 3, 1986
    • Al-Ko Products, Inc.
    • David C. Shifflett
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS