Harry J. Keen

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Waterford, VT, US

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Patents Grantslast 30 patents

Information Patent Grant
Moistureproof load cell for food processing applications and method...
- Patent number 4,549,439
- Issue date Oct 29, 1985
- Colt Industries Operating Corp
- Harry J. Keen
- G01 - MEASURING TESTING
Information Patent Grant
Electronic measuring system with pulsed power supply and stability...
- Patent number 4,238,784
- Issue date Dec 9, 1980
- Colt Industries Operating Corp
- Harry J. Keen
- G01 - MEASURING TESTING
Information Patent Grant
Electronic measuring system with pulsed transducer
- Patent number 4,081,801
- Issue date Mar 28, 1978
- Colt Industries Operating Corp
- Haydon C. Thomas
- G01 - MEASURING TESTING
Information Patent Grant
Vehicle weighing system
- Patent number 3,990,032
- Issue date Nov 2, 1976
- Colt Industries Operating Corporation
- David H. Fish
- B60 - VEHICLES IN GENERAL