Document Type and Number:
Japanese Patent JPS6218252
Kind Code:
Y2
Application Number:
JP10807781U
Publication Date:
May 11, 1987
Filing Date:
July 21, 1981
Export Citation:
International Classes:
B01D46/42; A62C3/00; G05D21/00; G05D21/02; G05D22/00; G05D22/02; (IPC1-7): B01D46/42; A62C3/14; G05D21/02; G05D22/02