Document Type and Number:
Japanese Patent JPS5532677
Kind Code:
Y2
Application Number:
JP6479175U
Publication Date:
August 04, 1980
Filing Date:
May 15, 1975
Export Citation:
International Classes:
B21D39/04; B21D39/00; B21F15/06; E04C5/03; E04C5/18; (IPC1-7): B21F15/06; E04C5/03