TREA

Tadayuki Watanabe

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Line-drawing toy
    • Patent number 5,752,870
    • Issue date May 19, 1998
    • Hasbro, Inc.
    • Hideyasu Karasawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES