Document Type and Number:
Japanese Patent JPS5245407
Kind Code:
B2
Application Number:
JP74274A
Publication Date:
November 16, 1977
Filing Date:
December 28, 1973
Export Citation:
International Classes:
E04B2/56; E04B2/72; E04C2/30; (IPC1-7): E04C2/30; E04B2/72