Leo R. Katzenstein

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Naperville, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Call service initialization arrangement
- Patent number 5,012,466
- Issue date Apr 30, 1991
- AT&T Bell Laboratories
- Rolfe E. Buhrke
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication channel reservation
- Patent number 4,958,343
- Issue date Sep 18, 1990
- AT&T Bell Laboratories
- Gabriela M. Abramovici
- H04 - ELECTRIC COMMUNICATION TECHNIQUE