Edmund M. Hamlin

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East Hampton, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for measurement of azimuth of a borehole while...
- Patent number 4,894,923
- Issue date Jan 23, 1990
- Alcan International Limited
- Martin E. Cobern
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for the detection and correction of magnetic interference in...
- Patent number 4,761,889
- Issue date Aug 9, 1988
- Teleco Oilfield Services Inc.
- Martin E. Cobern
- E21 - EARTH DRILLING MINING