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Hamlin Leonard

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  • Darien, CT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Key locking device
    • Patent number 6,739,794
    • Issue date May 25, 2004
    • Frank Roth Co., Inc.
    • Hamlin Leonard
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fully adjustable torque controller, clutch and brake
    • Patent number 6,589,121
    • Issue date Jul 8, 2003
    • Halo Product Innovations
    • Hamlin Leonard
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Adjustable-drive-ratio multiple-step belt transmission
    • Patent number 4,530,676
    • Issue date Jul 23, 1985
    • Hamlin Leonard
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...