Donald Edmond Gilbert

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Two wire command and monitoring system
- Patent number 4,017,832
- Issue date Apr 12, 1977
- Powell Electrical Manufacturing Company
- Donald Edmond Gilbert
- G08 - SIGNALLING
Information Patent Grant
Two wire command and monitoring system
- Patent number 3,993,977
- Issue date Nov 23, 1976
- Powell Electrical Manufacturing Company
- Donald Edmond Gilbert
- G08 - SIGNALLING