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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS567754
Kind Code:
B2
Application Number:
JP12553172A
Publication Date:
February 19, 1981
Filing Date:
December 14, 1972
Export Citation:
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International Classes:
B01D1/22; C02F1/04; C10G7/00; C10G7/04; C10G33/06; C10M175/00