Document Type and Number:
Japanese Patent JPH0140676
Kind Code:
B2
Inventors:
HATAKEYAMA FUMYOSHI
Application Number:
JP3841881A
Publication Date:
August 30, 1989
Filing Date:
March 17, 1981
Export Citation:
Assignee:
EBARA INFILCO
International Classes:
C02F1/28; C02F1/42
Next Patent: JPH0140677