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Inventor
RENZ GERHARD
DE
2 patents
Patents
2 patents
US4754480A
Jun 28, 1988
Circuit arrangement for telecommunication switching systems connected to line concentrator sub-exchanges by connecting channels
SIEMENS AG
12 citations
65
US4053793A
Oct 11, 1977
Modular logic circuit for performing different logic functions
SIEMENS AG
2 citations
56