TREA

Richard A. Baumann

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  • Franksville, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Liquid crystal writing slate
    • Patent number 5,115,330
    • Issue date May 19, 1992
    • Western Publishing Company
    • Frederick E. Nobile
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Liquid crystal writing state
    • Patent number 5,111,316
    • Issue date May 5, 1992
    • Western Publishing Company
    • Frederick E. Nobile
    • G02 - OPTICS