Document Type and Number:
Japanese Patent JPS63174902
Kind Code:
U
Application Number:
JP8804487U
Publication Date:
November 14, 1988
Filing Date:
June 09, 1987
Export Citation:
International Classes:
B21B17/04; B21B19/10; B21B23/00; (IPC1-7): B21B17/04; B21B19/10; B21B23/00