David E. Young

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Seabrook, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Coring tool
- Patent number 4,930,587
- Issue date Jun 5, 1990
- Diamant Boart-Stratabit (USA) Inc.
- David E. Young
- E21 - EARTH DRILLING MINING
Information Patent Grant
Gauge carrier
- Patent number 4,628,995
- Issue date Dec 16, 1986
- Panex Corporation
- David E. Young
- E21 - EARTH DRILLING MINING