Karl W. Nicholas

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Roselle, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Electrical survey apparatus and method with spinner-type conductor...
- Patent number 4,438,391
- Issue date Mar 20, 1984
- Harco Corporation
- Joseph W. Rog
- G01 - MEASURING TESTING
Information Patent Grant
Low resistance, fluid replenishing, reference cell and method for u...
- Patent number 4,414,511
- Issue date Nov 8, 1983
- Harco Corporation
- Charles G. Waits
- G01 - MEASURING TESTING
Information Patent Grant
Electrical survey method and apparatus
- Patent number 4,322,805
- Issue date Mar 30, 1982
- Harco Corporation
- Joseph W. Rog
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...