Document Type and Number:
Japanese Patent JPS51158722
Kind Code:
U
Application Number:
JP7987675U
Publication Date:
December 17, 1976
Filing Date:
June 11, 1975
Export Citation:
International Classes:
H04B11/00; H04N5/00; H04Q9/00; (IPC1-7): H04Q9/00; H04B11/00; H04N5/44