Francis O. Couch

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Portland, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for transmitting data
- Patent number 4,945,533
- Issue date Jul 31, 1990
- Kentrox Industries, Inc.
- George L. Schroeder
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for disabling an echo canceller on a digital t...
- Patent number 4,881,221
- Issue date Nov 14, 1989
- Kentrox Industries, Inc.
- George L. Schroeder
- H04 - ELECTRIC COMMUNICATION TECHNIQUE