Document Type and Number:
Japanese Patent JPS4931833
Kind Code:
Y1
Application Number:
JP13026870U
Publication Date:
August 28, 1974
Filing Date:
December 23, 1970
Export Citation:
International Classes:
B26F1/02; B21D28/16; B23D15/00; B26F1/00; (IPC1-7): B21D28/16; B23D15/00; B26F1/00