Document Type and Number:
Japanese Patent JPS56152126
Kind Code:
U
Application Number:
JP4917980U
Publication Date:
November 14, 1981
Filing Date:
April 11, 1980
Export Citation:
International Classes:
B21D28/14; B21D28/00; B21D37/10; B21D37/12; B21D45/02; B21D45/04; (IPC1-7): B21D45/02; B21D28/00; B21D37/12