Document Type and Number:
Japanese Patent JPS641272
Kind Code:
B2
Inventors:
KOJIMA KYOKAZU
Application Number:
JP1259081A
Publication Date:
January 11, 1989
Filing Date:
January 30, 1981
Export Citation:
Assignee:
TANAKA PRECIOUS METAL IND
International Classes:
H01H11/04; B24B1/00; B24B9/00; B24B31/14