Erich Port

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Ruschlikon, CH

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Patents Grantslast 30 patents

Information Patent Grant
High-speed modular switching apparatus for circuit and packet switc...
- Patent number 5,008,878
- Issue date Apr 16, 1991
- International Business Machines Corporation
- Hamid Ahmadi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of transmitting information and multiplexing device for exec...
- Patent number 3,988,545
- Issue date Oct 26, 1976
- International Business Machines Corporation
- Karl A. Kuemmerle
- H04 - ELECTRIC COMMUNICATION TECHNIQUE