Assignee

GEC PLESSY TELECOMMUNICATIONS

GB·1 granted patent·18 citations·filing 1990–1990

Technology mixH04J1 H04K1 H04Q1

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0140US5091902ATelecommunications transmission security arrangementGEC PLESSY TELECOMMUNICATIONS·Filed 1990·Granted Feb 25, 1992·18 cites·1 claims

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