Document Type and Number:
Japanese Patent JPS63184623
Kind Code:
U
Application Number:
JP7371087U
Publication Date:
November 28, 1988
Filing Date:
May 19, 1987
Export Citation:
International Classes:
B21D28/14; B23D23/00; B23D35/00; (IPC1-7): B21D28/14; B23D23/00