Document Type and Number:
Japanese Patent JPS5046457
Kind Code:
A
Application Number:
JP9719273A
Publication Date:
April 25, 1975
Filing Date:
August 31, 1973
Export Citation:
International Classes:
H04L69/14; G06F9/48; G06F13/00; (IPC1-7): G06F3/04; H04L11/00; G06F9/18