RONDA S. SHEPHERD

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HOUSTON, TX, US

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Patents Applicationslast 30 patents

Information Patent Application
FIXED CUTTER DRILL BIT HEEL AND BACK-REAM CUTTER PROTECTIONS FOR AB...
- Publication number 20130153306
- Publication date Jun 20, 2013
- Smith International, Inc.
- YURI BURHAN
- E21 - EARTH DRILLING MINING