Doulgas Braden

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Calgary, CA

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Patents Grantslast 30 patents

Information Patent Grant
Casing float tool
- Patent number 9,593,542
- Issue date Mar 14, 2017
- NCS Multistage Inc.
- Donald Getzlaf
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
CASING FLOAT TOOL
- Publication number 20140216756
- Publication date Aug 7, 2014
- Donald Getzlaf
- E21 - EARTH DRILLING MINING