Raymond L. Coleman

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Cheshire, GB

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Patents Grantslast 30 patents

Information Patent Grant
Transformer testing
- Patent number 4,857,856
- Issue date Aug 15, 1989
- ERA Patents Limited
- Raymond L. Coleman
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for testing electrical equipent
- Patent number 4,785,233
- Issue date Nov 15, 1988
- ERA Patents Limited
- Raymond L. Coleman
- G01 - MEASURING TESTING