Document Type and Number:
Japanese Patent JPS63158073
Kind Code:
U
Application Number:
JP5063087U
Publication Date:
October 17, 1988
Filing Date:
April 02, 1987
Export Citation:
International Classes:
H04B10/00; H04B10/07; H04B10/114; H04L9/32; H04Q9/00; (IPC1-7): H04Q9/00