Document Type and Number:
Japanese Patent JPS4971533
Kind Code:
U
Application Number:
JP11631172U
Publication Date:
June 21, 1974
Filing Date:
October 09, 1972
Export Citation:
International Classes:
B21D1/02; B21D1/05; C25C7/02; (IPC1-7): B21D1/02; C25C7/02