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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0249761
Kind Code:
B2
Inventors:
TABUCHI TAKU
SUZUKI SHOJI
ITO HAJIME
Application Number:
JP4173582A
Publication Date:
October 31, 1990
Filing Date:
March 18, 1982
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Assignee:
MITSUBISHI RAYON CO
International Classes:
B01D15/00; B01D21/01; C01G43/00; C22B60/02