John W. McGivery

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Scarborough, CA

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for plugging a gas main
- Patent number 6,745,795
- Issue date Jun 8, 2004
- Enbridge Gas Distribution Inc.
- John W. McGivery
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Method and device for plugging a gas main
- Publication number 20030098080
- Publication date May 29, 2003
- John W. McGivery
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...