Document Type and Number:
Japanese Patent JPS5045803
Kind Code:
Y2
Application Number:
JP8312071U
Publication Date:
December 25, 1975
Filing Date:
September 14, 1971
Export Citation:
International Classes:
E04F15/02; E04F15/10; E04F15/18; (IPC1-7): E04F15/18; E04F15/10