Document Type and Number:
Japanese Patent JPS5232640
Kind Code:
B2
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Application Number:
JP4759173A
Publication Date:
August 23, 1977
Filing Date:
May 01, 1973
Export Citation:
International Classes:
B01D17/04; B01J20/26; C02F1/28; C02F1/40; C09K3/32; E02B15/10