Document Type and Number:
Japanese Patent JPS5016145
Kind Code:
U
Application Number:
JP6027073U
Publication Date:
February 20, 1975
Filing Date:
May 23, 1973
Export Citation:
International Classes:
E04F13/04; B21D31/04; B21D47/00; (IPC1-7): B21D31/04; B21D47/00; E04F13/04