Roland Granskog

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Skelleftea, SE

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Patents Grantslast 30 patents

Information Patent Grant
Method and equipment for narrow ore mining
- Patent number 5,007,683
- Issue date Apr 16, 1991
- ALIMAK AB
- Roland Granskog
- E21 - EARTH DRILLING MINING
Information Patent Grant
Equipment for raise mining
- Patent number 4,960,175
- Issue date Oct 2, 1990
- Alimak AB
- Roland Granskog
- E21 - EARTH DRILLING MINING