Document Type and Number:
Japanese Patent JPS5292702
Kind Code:
U
Application Number:
JP18058875U
Publication Date:
July 11, 1977
Filing Date:
December 30, 1975
Export Citation:
International Classes:
G10K11/16; E04B1/84; E04H9/16; G10K11/00; (IPC1-7): G10K11/00; E04B1/84