Document Type and Number:
Japanese Patent JPS5377937
Kind Code:
U
Application Number:
JP15980076U
Publication Date:
June 29, 1978
Filing Date:
December 01, 1976
Export Citation:
International Classes:
B21B17/00; B21B17/02; B21B19/04; B21B25/00; (IPC1-7): B21B25/00; B21B17/02