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Robert L. Day

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  • Sun Valley, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Trimless door frame
    • Patent number 5,154,019
    • Issue date Oct 13, 1992
    • Robert L. Day
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Static ball joint
    • Patent number 5,098,213
    • Issue date Mar 24, 1992
    • Robert L. Day
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Door security bracket
    • Patent number 4,869,087
    • Issue date Sep 26, 1989
    • Sabir Locks, Inc.
    • Robert L. Day
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Metal frame system
    • Patent number 4,819,392
    • Issue date Apr 11, 1989
    • Robert L. Day
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Spring pivot joint for mannequin
    • Patent number 4,619,540
    • Issue date Oct 28, 1986
    • S.D.S. Industries, Inc.
    • Robert L. Day
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...