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Patents > Tech fields : Propulsion or construction & IPCs: IPC B64C11/00

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None (3) · Jan Jaakson (3) · Vincent Wisniewski (3) · Hellmuth Hirth (2) · Antoine-Padoue Filippi (2) · Heinrich Mack (2) · Max Reymond (2)
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None (7) · Vincent Wisniewski (3) · Jan Jaakson (3) · Antoine-Padoue Filippi (2) · Hellmuth Hirth (2) · Heinrich Mack (2) · Max Reymond (2)
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None (9)
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