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Inventor
KIM TAE I
KR
2 patents
Patents
2 patents
US5448617A
Sep 5, 1995
Method of processing intelligent network service call with DTMF subscriber signalling in electronic switching system for toll/tandem
KOREA ELECTRONICS TELECOMM
7 citations
63
US5063584A
Nov 5, 1991
Method for testing subscriber's equipment
KOREA ELECTRONICS TELECOMM
4 citations
60