Thomas W. Couch

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Asheville, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Freeze-thaw indicator
- Patent number 4,145,918
- Issue date Mar 27, 1979
- Akzona Incorporated
- Thomas W. Couch
- G01 - MEASURING TESTING
Information Patent Grant
Device for use as an elapsed time indicator or time temperature ind...
- Patent number 4,137,049
- Issue date Jan 30, 1979
- Akzona Incorporated
- Thomas W. Couch
- G07 - CHECKING-DEVICES