Document Type and Number:
Japanese Patent JPS5039253
Kind Code:
A
Application Number:
JP8925473A
Publication Date:
April 11, 1975
Filing Date:
August 10, 1973
Export Citation:
International Classes:
B21D53/06; B23K1/00; B23K1/06; F28F1/30; (IPC1-7): B23K1/04; B23K1/06; F28F1/30