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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS633490
Kind Code:
B2
Inventors:
TANAKA TOSHINORI
KATO HARUHIKO
Application Number:
JP19677082A
Publication Date:
January 25, 1988
Filing Date:
November 11, 1982
Export Citation:
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Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
H04J4/00; H04B7/185; H04J1/06