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Kanegafuchi Spinning Co Ltd

Kanegafuch
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3743530A Method of producing sheet material having micro-porous stru… Expired / Lapsed 1970-07-13 1973-07-03 0 Details
US3663470A Method of producing polyvinyl acetal porous articles and th… Expired / Lapsed 1970-05-28 1972-05-16 0 Details