TREA

Tooru Sano

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  • Mobara, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Light source device
    • Patent number 4,909,604
    • Issue date Mar 20, 1990
    • Hitachi, Ltd.
    • Akira Kobayashi
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS