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John B. Rogers

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  • Queens County, Nova Scotia, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Calculator for guitar scales
    • Patent number 6,080,925
    • Issue date Jun 27, 2000
    • John B. Rogers
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Chest exercise device
    • Patent number 4,720,096
    • Issue date Jan 19, 1988
    • John B. Rogers
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Fluid type abductor-adductor exercise device
    • Patent number 4,625,960
    • Issue date Dec 2, 1986
    • William Gvoich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Valve module and apparatus therefor
    • Patent number 4,601,467
    • Issue date Jul 22, 1986
    • William Gvoich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...