Document Type and Number:
Japanese Patent JPS4893593
Kind Code:
A
Application Number:
JP1842873A
Publication Date:
December 04, 1973
Filing Date:
February 16, 1973
Export Citation:
International Classes:
B01D53/06; B01D53/68; C01F7/50; C01B7/20; (IPC1-7): C22D3/12