TREA

Fred Zwicker

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  • Canfield, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Abrasive recovery blasting cabinet
    • Patent number 6,364,748
    • Issue date Apr 2, 2002
    • Skat Blast, Inc.
    • Frederick Zwicker
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Abrasive blasting cabinet
    • Patent number D445118
    • Issue date Jul 17, 2001
    • Skat Blast, Inc.
    • Fred Zwicker
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Sandblasting valving device
    • Patent number 4,947,589
    • Issue date Aug 14, 1990
    • Truman's Inc., Ohio Corporation
    • Fred Zwicker
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Safety retainer clip
    • Patent number 4,796,925
    • Issue date Jan 10, 1989
    • Fred Zwicker
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sandblast shutoff valve
    • Patent number 4,698,940
    • Issue date Oct 13, 1987
    • Truman's Inc.
    • Fred Zwicker
    • B24 - GRINDING POLISHING