Document Type and Number:
Japanese Patent JPS5047866
Kind Code:
A
Application Number:
JP2225374A
Publication Date:
April 28, 1975
Filing Date:
February 25, 1974
Export Citation:
International Classes:
B21B1/16; B21B1/18; B21B39/18; C21D9/52; (IPC1-7): B21B41/00; B21B1/16