Fritz Tibussek

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Monchen-Gladbach, DT

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Patents Grantslast 30 patents

Information Patent Grant
Method and a device for drilling with several tools in simultaneous...
- Patent number 4,079,795
- Issue date Mar 21, 1978
- Maschinen-und Bohrgerate-Fabrik Alfred Wirth & Co., K.G.
- Wilfried Sackmann
- E21 - EARTH DRILLING MINING