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Patents > Office : DK or FR & National tech categories: FR 6.3 & IPCs: None & Family year: 1880 - 1889

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Guégnot (4) · de Schuttenbach (3) · Georg Wellner (3) · Jules Cezar Ribeiro de Souza (2) · Bel (2) · Folacci (2) · Gaston Tissandier (2) · Phérékyde (2) · Yon (2) · Foucher (2) · Ferdinand-Charles-Honoré-Philippe d'Esterno (2)
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navigation (28) · propulsion (25) · LTA (22) · balloon (14) · Dirigible (6) · aerostat (6) · airship (6) · ascension (5) · stability (5) · steam (3) · ornithopter (2) · flapping (2) · None (2) · balloons (2) · sail (2) · airplane (2)
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