Document Type and Number:
Japanese Patent JPS571947
Kind Code:
B2
Application Number:
JP1893775A
Publication Date:
January 13, 1982
Filing Date:
February 17, 1975
Export Citation:
International Classes:
H04L25/08; H03K5/19; H03K9/00; H04J3/06; H04L7/08; H04L25/49; H04L27/22
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