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Harold E. Damratowski

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  • Alda, NB, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Router machine
    • Patent number 5,592,793
    • Issue date Jan 14, 1997
    • Merrick Machine Co.
    • Harold E. Damratowski
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Pilfer resistant container
    • Patent number 4,399,914
    • Issue date Aug 23, 1983
    • Triad Corporation
    • Harold Damratowski
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Irrigation pipe gate
    • Patent number 4,398,694
    • Issue date Aug 16, 1983
    • Triad Corporation
    • Harold E. Damratowski
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Air-powered, self-feeding screw driving tool
    • Patent number 4,047,611
    • Issue date Sep 13, 1977
    • Triad Fastner Corporation
    • Harold E. Damratowski
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Air-powered, self-feeding screw driving tool
    • Patent number 3,971,421
    • Issue date Jul 27, 1976
    • Triad Fastener Corporation
    • Harold E. Damratowski
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS