Document Type and Number:
Japanese Patent JPS5337341
Kind Code:
Y2
Application Number:
JP11882371U
Publication Date:
September 09, 1978
Filing Date:
December 14, 1971
Export Citation:
International Classes:
B21D43/02; B21D43/24; B23Q7/00; B65H3/44; (IPC1-7): B21D43/02