Dagobert Feld

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Lachendorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Saver sub for a steering tool
- Patent number 6,845,826
- Issue date Jan 25, 2005
- Noble Drilling Services Inc.
- Dagobert Feld
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for the transmission of information in a drill string
- Patent number 5,806,612
- Issue date Sep 15, 1998
- DMT-Gesellschaft Fur Forschung Und Prufung MBH
- Werner Vorhoff
- E21 - EARTH DRILLING MINING