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CPC
H04Q2213/349
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Parent Industries
H
ELECTRICITY
H04
Electric communication
H04Q
SELECTING
H04Q2213/00
Indexing scheme relating to selecting arrangements in general and for multiplex systems
Current Industry
H04Q2213/349
Network management Expert system
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last 30 patents
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Patent Grant
ISDN terminal equipment control method
Patent number
5,268,904
Issue date
Dec 7, 1993
Ricoh Company, Ltd.
Toshihiko Umeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE