Document Type and Number:
Japanese Patent JPH0117788
Kind Code:
B2
Inventors:
KOIZUMI TAKASHI
SAKANE TAKEYOSHI
SAKANE TAKEYOSHI
Application Number:
JP4253580A
Publication Date:
April 03, 1989
Filing Date:
March 31, 1980
Export Citation:
Assignee:
SUMITOMO METAL IND
International Classes:
B22D19/16; B22D7/02; B22D19/00
Next Patent: JPH0117789