Donald P. Keathley

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Middlefield, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Surface material and condition sensing system
- Patent number 5,745,051
- Issue date Apr 28, 1998
- John A. Doherty
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Surface material and condition sensing system
- Patent number 5,619,193
- Issue date Apr 8, 1997
- Doherty; John A.
- John A. Doherty
- B60 - VEHICLES IN GENERAL