Document Type and Number:
Japanese Patent JPS5121289
Kind Code:
B1
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Application Number:
JP8465870A
Publication Date:
July 01, 1976
Filing Date:
September 29, 1970
Export Citation:
International Classes:
H04L25/497; H04B3/00; H04B3/50; H04L25/52; (IPC1-7): H04B3/50; H04B3/00