Document Type and Number:
Japanese Patent JPS4732667
Kind Code:
U
Application Number:
JP3080171U
Publication Date:
December 12, 1972
Filing Date:
April 19, 1971
Export Citation:
International Classes:
B21D51/26; B21D19/00; B21D19/08; B21D51/00; (IPC1-7): B21D19/00; B21D51/26