Document Type and Number:
Japanese Patent JPS4980608
Kind Code:
U
Application Number:
JP12540172U
Publication Date:
July 12, 1974
Filing Date:
November 01, 1972
Export Citation:
International Classes:
H04B3/46; H04M1/24; H04M13/00; (IPC1-7): H04M13/00; H04B3/46; H04M1/24