Bernardus Ludgerus Lubertus Hijlkema

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Leeuwarden, NL

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Patents Applicationslast 30 patents

Information Patent Application
METHOD AND DEVICE FOR DRILLING A PIT OR PASSAGE, AND FLEXIBLE TUBE...
- Publication number 20130313020
- Publication date Nov 28, 2013
- Bernardus Ludgerus Lubertus Hijlkema
- E21 - EARTH DRILLING MINING