TREA

Roy B. Johnson

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  • Manchester, TN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Coin handling machine
    • Patent number 4,549,561
    • Issue date Oct 29, 1985
    • Ristvedt-Johnson, Inc.
    • Roy B. Johnson
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Coin handling machine
    • Patent number 4,531,531
    • Issue date Jul 30, 1985
    • Ristvedt-Johnson, Inc.
    • Roy B. Johnson
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Coin handling machine
    • Patent number 4,444,212
    • Issue date Apr 24, 1984
    • Ristvedt-Johnson, Inc.
    • Victor G. Ristvedt
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Coin handling machine
    • Patent number 4,234,003
    • Issue date Nov 18, 1980
    • Victor G. Ristvedt
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Coin handling machine
    • Patent number 4,098,280
    • Issue date Jul 4, 1978
    • Victor G. Ristvedt
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    Coin sorting machine
    • Patent number 4,086,928
    • Issue date May 2, 1978
    • Victor G. Ristvedt
    • G07 - CHECKING-DEVICES