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Patents > Year granted: 1900 - 1909 & Inventor country: DE & Tech fields : Airplane or propeller

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None (5) · Paul Frederik Degn (4) · Gustav Kerwat (3) · Eugen Schmid (2) · Raymond d'Equevilley-Montjustin (2) · Josef Seiberl (2) · Hermann Ruthenberg (2) · Heinrich Bauer (2)
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