Document Type and Number:
Japanese Patent JPS5585222
Kind Code:
U
Application Number:
JP16715378U
Publication Date:
June 12, 1980
Filing Date:
December 05, 1978
Export Citation:
International Classes:
B21D53/00; B21C37/00; B23D29/02; (IPC1-7): B23D29/02; B21C37/00