TREA

Stanley E. Charles

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  • La Canada, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic seal assembly
    • Patent number 4,917,390
    • Issue date Apr 17, 1990
    • Tetrafluor, Inc.
    • John Lee
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Identification device with versatile imprinting means
    • Patent number 4,386,795
    • Issue date Jun 7, 1983
    • Precision Dynamics Corporation
    • Stanley E. Charles
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Identification device with versatile imprinting means
    • Patent number 4,318,234
    • Issue date Mar 9, 1982
    • Precision Dynamics Corporation
    • Stanley E. Charles
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Tamper-resistant identification device
    • Patent number 4,285,146
    • Issue date Aug 25, 1981
    • Precision Dynamics Corporation
    • Stanley E. Charles
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Tamper-resistant identification device
    • Patent number 4,221,063
    • Issue date Sep 9, 1980
    • Precision Dynamics Corporation
    • Stanley E. Charles
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS