Randolph K. Armstrong

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Cincinnati, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Cathodic protection analyzer in which the fundamental and odd harmo...
- Patent number 4,940,944
- Issue date Jul 10, 1990
- Westinghouse Electric Corp.
- David S. Steele
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Leak testing by gas flow signature analysis
- Patent number 4,776,206
- Issue date Oct 11, 1988
- Xetron Corporation
- Randolph K. Armstrong
- G01 - MEASURING TESTING