Document Type and Number:
Japanese Patent JPS6397462
Kind Code:
U
Application Number:
JP19224786U
Publication Date:
June 23, 1988
Filing Date:
December 12, 1986
Export Citation:
International Classes:
B21F1/00; B21D7/024; B25B7/22; (IPC1-7): B25B7/22; B21D7/024; B21F1/00