Maruni Kasei Kabushiki Kaisha

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5441308 Filing device and supplemental sheet-like material for the sameExpiredDec 30, 92Aug 15, 95[B42D]
4923351 Bookbinding and its productsExpiredJun 07, 88May 08, 90[B42B]

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