Document Type and Number:
Japanese Patent JPS6320418
Kind Code:
Y2
Application Number:
JP6872283U
Publication Date:
June 07, 1988
Filing Date:
May 09, 1983
Export Citation:
International Classes:
B21D17/00; B23P9/02; B24B39/02; (IPC1-7): B21D17/00; B24B39/02