TREA

John W. Papsdorf

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  • Lake Orion, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Truss fabrication apparatus and method of making a truss
    • Patent number 4,998,336
    • Issue date Mar 12, 1991
    • John Papsdorf
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Method of making a hinge with an integral pintle
    • Patent number 4,379,360
    • Issue date Apr 12, 1983
    • Liberty Hardware Manufacturing Corp.
    • John Papsdorf
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Internally finned tube
    • Patent number 4,163,474
    • Issue date Aug 7, 1979
    • E. I. Du Pont de Nemours and Company
    • Robert D. MacDonald
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Punched tape control system
    • Patent number 3,957,188
    • Issue date May 18, 1976
    • Cardinal of Adrian, Inc.
    • John W. Papsdorf
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Punched tape control system
    • Patent number 3,957,189
    • Issue date May 18, 1976
    • Cardinal of Adrian, Inc.
    • John W. Papsdorf
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Punched tape control system
    • Patent number 3,955,736
    • Issue date May 11, 1976
    • Cardinal of Adrian, Inc.
    • John W. Papsdorf
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING