Rock Bit L.P.

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Fort Worth, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Stepped polycrystalline diamond compact insert
- Patent number 6,904,984
- Issue date Jun 14, 2005
- Rock Bit L.P.
- Roy D. Estes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roller cone bi-center bit
- Patent number 6,902,014
- Issue date Jun 7, 2005
- Rock Bit L.P.
- Roy D. Estes
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Trademarklast 30 trademarks