Johan Wessberg

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Fagersta, SE

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Patents Grantslast 30 patents

Information Patent Grant
Hard metal insert for a drill bit for percussion drilling and metho...
- Patent number 9,290,999
- Issue date Mar 22, 2016
- Atlas Copco Secoroc AB
- Göran Stenberg
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
HARD METAL INSERT FOR A DRILL BIT FOR PERCUSSION DRILLING AND METHO...
- Publication number 20130048387
- Publication date Feb 28, 2013
- ATLAS COPCO SECOROC AB
- Göran Stenberg
- E21 - EARTH DRILLING MINING