TREA

Richard D. Fay

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  • Jackson, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Device for training welders
    • Patent number 4,931,018
    • Issue date Jun 5, 1990
    • Lenco, Inc.
    • Donald J. Herbst
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS