Document Type and Number:
Japanese Patent JPS641705
Kind Code:
U
Application Number:
JP9761987U
Publication Date:
January 06, 1989
Filing Date:
June 25, 1987
Export Citation:
International Classes:
B01D41/04; B01D61/20; B01D65/06; (IPC1-7): B01D13/00; B01D41/04