Louis E. Witte

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Bakersfield, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Automated oil rig servicing system
- Patent number 5,988,299
- Issue date Nov 23, 1999
- James Hansen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Automated oil rig servicing system
- Patent number 5,711,382
- Issue date Jan 27, 1998
- James Hansen
- E21 - EARTH DRILLING MINING