Document Type and Number:
Japanese Patent JPS4944866
Kind Code:
B1
Application Number:
JP2476469A
Publication Date:
November 30, 1974
Filing Date:
April 02, 1969
Export Citation:
International Classes:
B21D31/00; B21K1/30; F16H55/02; F16H61/16; F16H61/18; F16H63/30