Per Krainer

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Ludvika, SE

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Patents Grantslast 30 patents

Information Patent Grant
Arrangement and a method for monitoring an air flow in a drill rig
- Patent number 8,813,870
- Issue date Aug 26, 2014
- Atlas Copco Rock Drills AB
- Deyi Jiao
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ARRANGEMENT AND A METHOD FOR MONITORING AN AIR FLOW IN A DRILL RIG
- Publication number 20110056749
- Publication date Mar 10, 2011
- Deyi Jiao
- E21 - EARTH DRILLING MINING