Document Type and Number:
Japanese Patent JPS4812491
Kind Code:
U
Application Number:
JP5447071U
Publication Date:
February 12, 1973
Filing Date:
June 25, 1971
Export Citation:
International Classes:
H04B1/40; H04B3/00; H04B3/02; H04B11/00; H04Q9/00; (IPC1-7): H04B11/00; H04B1/40; H04B3/00; H04Q9/00