TREA

Isao Washio

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  • Shizuoka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Thermosensitive recording medium
    • Patent number 6,319,878
    • Issue date Nov 20, 2001
    • Ricoh Company, Ltd.
    • Hiroyuki Ina
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS