Document Type and Number:
Japanese Patent JPS5072853
Kind Code:
A
Application Number:
JP12247373A
Publication Date:
June 16, 1975
Filing Date:
October 31, 1973
Export Citation:
International Classes:
B21B1/22; B21B1/28; B21B13/02; B21B13/14; B21B1/24; B21B39/08; (IPC1-7): B21B13/00