Werner Stecher

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Patents Grantslast 30 patents

Information Patent Grant
Coal-cutting machine having horizontally swivellable jib boom and v...
- Patent number 4,998,777
- Issue date Mar 12, 1991
- Voest-Alpine Maschinenbau Gesellschaft m.b.H.
- Otto Schetina
- E21 - EARTH DRILLING MINING