TREA

Opcon Associates of Canada, Ltd.

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Organization

  • Toronto, CA
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Triplet with aspheric surfaces
    • Patent number 4,109,995
    • Issue date Aug 29, 1978
    • Opcon Associates of Canada, Ltd.
    • Ellis I. Betensky
    • G02 - OPTICS
  • Information Patent Grant

    Loupe
    • Patent number 4,094,585
    • Issue date Jun 13, 1978
    • Opcon Associates of Canada, Ltd.
    • Ellis I. Betensky
    • G02 - OPTICS

Patents Applicationslast 30 patents

Trademarklast 30 trademarks