Bernhard Wiechers

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Bad Oeynhausen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Bucket wheel excavator
- Patent number 6,014,825
- Issue date Jan 18, 2000
- Krupp Fordertechnik GmbH
- Dieter Jahn
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Open-cut mining cutter
- Patent number 4,960,306
- Issue date Oct 2, 1990
- O & K Orenstein & Koppel Aktiengesellschaft
- Thorwald Kipp
- E21 - EARTH DRILLING MINING