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Patents > Tech fields : frame or lift & National tech categories: FR 6.4 & IPCs: IPC B64C1/00

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None (3) · Paul Schmitt (3) · Georges-Augustin-Clément Loyer (2) · Albéric de la Celle (2) · Maurice-Marie-Louis-Émile Badaire (2) · Jean-François Arnaud (2) · Jean Constantin (2) · Robert Esnault-Pelterie (2) · Henri-Marie Coandă (2) · Paul Huguet (2)
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None (3) · Paul Schmitt (3) · Maurice-Marie-Louis-Émile Badaire (2) · Jean-François Arnaud (2) · Jean Constantin (2) · Henri-Marie Coandă (2) · Georges-Augustin-Clément Loyer (2) · Paul Huguet (2) · Robert Esnault-Pelterie (2) · Albéric de la Celle (2)
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