Jarmo Leppanen

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Gauteng, ZA

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Patents Grantslast 30 patents

Information Patent Grant
Rock drill and method of breaking rock
- Patent number 7,942,481
- Issue date May 17, 2011
- Sandvik Mining and Construction Oy
- Jarmo Leppänen
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ROCK ANCHOR CABLE
- Publication number 20110135402
- Publication date Jun 9, 2011
- Jarmo Uolevi Leppanen
- E21 - EARTH DRILLING MINING
Information Patent Application
Rock Drill and Method of Breaking Rock
- Publication number 20080236433
- Publication date Oct 2, 2008
- Jarmo Leppanen
- E21 - EARTH DRILLING MINING