Document Type and Number:
Japanese Patent JPH0464761
Kind Code:
B2
Inventors:
NAKASUJI KAZUYUKI
HAYASHI CHIHIRO
HAYASHI CHIHIRO
Application Number:
JP7173983A
Publication Date:
October 16, 1992
Filing Date:
April 22, 1983
Export Citation:
Assignee:
SUMITOMO METAL IND
International Classes:
B21B19/02; B21B19/06; B21B1/20
Next Patent: JPH0464762