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Hildaur L. Neilsen

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  • Metuchen, NJ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Closed portable card file
    • Patent number 4,906,057
    • Issue date Mar 6, 1990
    • Rolodex Corporation
    • Richard A. Davi
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Adjustable multiple paper punch
    • Patent number 4,898,055
    • Issue date Feb 6, 1990
    • Hildaur L. Neilsen
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Paper punch apparatus with improved punch element
    • Patent number 4,829,867
    • Issue date May 16, 1989
    • Hildaur L. Neilsen
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Heavy duty paper punch
    • Patent number 4,688,457
    • Issue date Aug 25, 1987
    • Rolodex Corporation
    • Hildaur L. Neilsen
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Key retaining device
    • Patent number 4,662,199
    • Issue date May 5, 1987
    • Hildaur L. Neilsen
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Key retaining device
    • Patent number 4,570,469
    • Issue date Feb 18, 1986
    • Hildaur L. Neilsen
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Key retaining device
    • Patent number 4,448,051
    • Issue date May 15, 1984
    • Hildaur L. Neilsen
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Key retaining device
    • Patent number 4,441,348
    • Issue date Apr 10, 1984
    • Hildaur L. Neilsen
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Deburring devices
    • Patent number 4,253,223
    • Issue date Mar 3, 1981
    • Hildaur L. Neilsen
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Locking rotary file
    • Patent number 4,231,624
    • Issue date Nov 4, 1980
    • The Rolodex Corporation
    • Hildaur L. Neilsen
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Rotary card file
    • Patent number 4,165,575
    • Issue date Aug 28, 1979
    • Rolodex Corporation
    • Hildaur L. Neilsen
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Deburring apparatus
    • Patent number 4,089,204
    • Issue date May 16, 1978
    • Hildaur L. Neilsen
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Burring device with oppositely acting deburring elements
    • Patent number 4,041,751
    • Issue date Aug 16, 1977
    • Hildaur L. Neilsen
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Hole punch device for selectively punching different arrays of hole...
    • Patent number 3,987,695
    • Issue date Oct 26, 1976
    • Hildaur L. Neilsen
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING