TREA

Stephen H. Mayer

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  • El Toro, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tamperproof coin case
    • Patent number 5,109,977
    • Issue date May 5, 1992
    • Professional Coin Grading Service, Inc.
    • Stephen H. Mayer
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Tamperproof coin case
    • Patent number 5,042,650
    • Issue date Aug 27, 1991
    • Professional Coin Grading Service, Inc.
    • Stephen H. Mayer
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...