Drilldown: Patents

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Patents > IPCs: IPC B64C13/00 & Number of claims: 1

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René Caudron (3) · Anton Flettner (3) · Charles Bénard (2) · Hervé-Pierre Félix (2)
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René Caudron (3) · Anton Flettner (3) · Charles Bénard (2) · Hervé-Pierre Félix (2)
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None (4)
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