Russell N. Bigelow

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Half Moon Bay, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Controlled power source for underground line location
- Patent number 7,091,872
- Issue date Aug 15, 2006
- Metrotech Corporation
- Russell N. Bigelow
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Detecting field distortion in underground line location
- Patent number 6,815,953
- Issue date Nov 9, 2004
- Metrotech Corporation
- Russell N. Bigelow
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
underground locator with a laser marking device.
- Publication number 20030184300
- Publication date Oct 2, 2003
- Russell N. Bigelow
- G01 - MEASURING TESTING