Johan Ericson

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Fagersta, SE

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Patents Grantslast 30 patents

Information Patent Grant
Thread joint for a drill string for percussive rock-drilling
- Patent number 8,066,307
- Issue date Nov 29, 2011
- Atlas Copco Secoroc AB
- Patrik Wahlström
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Thread joint for a drill string for percussive rock-drilling
- Publication number 20060118340
- Publication date Jun 8, 2006
- Patrik Wahlstrom
- E21 - EARTH DRILLING MINING