TREA

Bradford Canterbury

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  • Sturbridge, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus and method for making cast ophthalmic lenses
    • Patent number 4,279,401
    • Issue date Jul 21, 1981
    • American Optical Corporation
    • Peter R. Ramirez
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Gasket for casting lenses
    • Patent number 4,227,673
    • Issue date Oct 14, 1980
    • American Optical Corporation
    • Bertram R. Goodwin
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL