TREA

Da International, Ltd.

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Organization

  • White Plains, NY, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Convertible wheelchair
    • Patent number 6,302,429
    • Issue date Oct 16, 2001
    • DA International, Ltd.
    • Paul Friedrich
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Method of wheelchair construction
    • Patent number 6,270,105
    • Issue date Aug 7, 2001
    • DA International, Ltd.
    • Paul Friedrich
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Failsafe weld-free method of joining tubular elements
    • Patent number 6,227,752
    • Issue date May 8, 2001
    • DA International, Ltd.
    • Paul Friedrich
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rigid frame weldless wheelchair
    • Patent number 5,253,888
    • Issue date Oct 19, 1993
    • Da International, Ltd.
    • Paul Friedrich
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

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