Document Type and Number:
Japanese Patent JPS5226511
Kind Code:
Y2
Application Number:
JP15360374U
Publication Date:
June 16, 1977
Filing Date:
December 17, 1974
Export Citation:
International Classes:
B21D19/08; B21D5/00; B21D19/00; B21D19/12; (IPC1-7): B21D19/00; B21D5/00