Document Type and Number:
Japanese Patent JPS5338678
Kind Code:
Y2
Application Number:
JP7704973U
Publication Date:
September 19, 1978
Filing Date:
June 28, 1973
Export Citation:
International Classes:
B21D7/024; B21D7/00; B21F1/00; B23D29/00; B23D29/02; B25B7/00; (IPC1-7): B21D7/024