John N. Rogers

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Tucson, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for testing of tank integrity of vehicle fuel...
- Patent number 5,369,984
- Issue date Dec 6, 1994
- Environmental Systems Products, Inc.
- John N. Rogers
- G01 - MEASURING TESTING
Information Patent Grant
Vehicle headlight testing system
- Patent number 5,321,439
- Issue date Jun 14, 1994
- Environmental Systems Products, Inc.
- John N. Rogers
- G01 - MEASURING TESTING
Information Patent Grant
Vehicle waiting time indicator
- Patent number 5,163,000
- Issue date Nov 10, 1992
- John N. Rogers
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Vehicle brake test system
- Patent number 4,893,242
- Issue date Jan 9, 1990
- United Technologies Corporation
- John N. Rogers
- G01 - MEASURING TESTING