Document Type and Number:
Japanese Patent JPH0421612
Kind Code:
Y2
Application Number:
JP1449887U
Publication Date:
May 18, 1992
Filing Date:
February 02, 1987
Export Citation:
International Classes:
B21D37/14; B23Q3/06; B25B5/00; (IPC1-7): B21D37/14; B23Q3/06; B25B5/00