Document Type and Number:
Japanese Patent JPH033422
Kind Code:
U
Application Number:
JP6318789U
Publication Date:
January 14, 1991
Filing Date:
June 01, 1989
Export Citation:
International Classes:
B01D53/68; B01D46/42; B01D53/34; (IPC1-7): B01D46/42; B01D53/34
Next Patent: JPH033423