GREATWALL DRILLING COMPANY

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Beijing, CN

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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and Method for Formation Dielectric Constant and Resistiv...
- Publication number 20140136113
- Publication date May 15, 2014
- GREATWALL DRILLING COMPANY
- Naizheng Liu
- G01 - MEASURING TESTING
Information Patent Application
Apparatus and Method for Formation Resistivity Measurements
- Publication number 20140136114
- Publication date May 15, 2014
- GREATWALL DRILLING COMPANY
- Naizheng Liu
- G01 - MEASURING TESTING
Information Patent Application
Apparatus and Method for Multi-Mode and Multi-Depth Resistivity Mea...
- Publication number 20140132420
- Publication date May 15, 2014
- GREATWALL DRILLING COMPANY
- Naizheng Liu
- G01 - MEASURING TESTING
Information Patent Application
APPARATUS AND METHOD FOR DEEP RESISTIVITY MEASUREMENT USING COMMUNI...
- Publication number 20140132271
- Publication date May 15, 2014
- GREATWALL DRILLING COMPANY
- Naizheng Liu
- G01 - MEASURING TESTING

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