Walter I. Armstrong

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Saline, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Infrared method and apparatus for measuring gas concentration of a...
- Patent number RE36277
- Issue date Aug 24, 1999
- Sensors, Inc.
- Karl H. Black
- 250 - Radiant energy
Information Patent Grant
Infrared method and apparatus for measuring gas concentration of a...
- Patent number 5,583,339
- Issue date Dec 10, 1996
- Sensors, Inc.
- Karl H. Black
- G01 - MEASURING TESTING
Information Patent Grant
Infrared method and apparatus for measuring gas concentration inclu...
- Patent number 5,510,269
- Issue date Apr 23, 1996
- Sensors, Inc.
- Karl H. Black
- G01 - MEASURING TESTING