Document Type and Number:
Japanese Patent JPH0218173
Kind Code:
B2
Inventors:
HAMANAKA SUKEAKI
FUJIMOTO MICHIO
FUJIMOTO MICHIO
Application Number:
JP21553182A
Publication Date:
April 24, 1990
Filing Date:
December 10, 1982
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
B21D53/08; B21C37/26; B21D31/04; B21D53/02; B21H8/00; B21H8/02; F28F1/12