Document Type and Number:
Japanese Patent JPS5338921
Kind Code:
Y2
Application Number:
JP12947775U
Publication Date:
September 20, 1978
Filing Date:
September 19, 1975
Export Citation:
International Classes:
B01D17/04; B01D17/02; C02F1/40; (IPC1-7): B01D17/08; B01D23/10