Document Type and Number:
Japanese Patent JPS5528346
Kind Code:
Y2
Application Number:
JP2234874U
Publication Date:
July 07, 1980
Filing Date:
February 26, 1974
Export Citation:
International Classes:
B21D43/05; B21J13/04; B21J13/08; B23Q7/14; B30B15/30; (IPC1-7): B21D43/05