Document Type and Number:
Japanese Patent JPS5725778
Kind Code:
Y2
Application Number:
JP5200775U
Publication Date:
June 04, 1982
Filing Date:
April 18, 1975
Export Citation:
International Classes:
B21B15/00; B23D25/02; B23D33/00; B23D33/02; (IPC1-7): B23D25/02; B23D33/02