Document Type and Number:
Japanese Patent JPS56100239
Kind Code:
U
Application Number:
JP18021279U
Publication Date:
August 07, 1981
Filing Date:
December 27, 1979
Export Citation:
International Classes:
B21D43/16; B21J9/00; B21J13/08; B21J13/10; B21K27/00; B21K27/02; (IPC1-7): B21J13/08; B21J9/00; B21K27/02