Eero Hartiala

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Kangasala, FI

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Patents Grantslast 30 patents

Information Patent Grant
Method of and device for adjusting the feed movement of a drill rod...
- Patent number 4,711,090
- Issue date Dec 8, 1987
- Oy Tampella AB
- Eero Hartiala
- E21 - EARTH DRILLING MINING