Yasuhiro Tokita

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Katsushika-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ring opening and closing bar and binding apparatus using the same
- Patent number 6,663,331
- Issue date Dec 16, 2003
- Carl Manufacturing Co., Ltd.
- Makoto Mori
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER