Donald D. Rae

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Willis, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Drill pipe connecting and disconnecting apparatus
- Patent number 7,117,938
- Issue date Oct 10, 2006
- Gray EOT, Inc.
- William R. Hamilton
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Drill pipe connecting and disconnecting apparatus
- Publication number 20030221871
- Publication date Dec 4, 2003
- GRAY EOT, INC.
- William R. Hamilton
- E21 - EARTH DRILLING MINING