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Patents > Publication date: 1909 & IPCs : IPC B64B1/00 or IPC B64C23/00

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None (5) · Ottavio Ricaldoni (2) · Alberto Tribelhorn (2) · Theodor Zorn (2) · Gaetano Arturo Crocco (2) · Jean Desbois (2) · Emanuel Spreekmeester (2)
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None (6) · Ottavio Ricaldoni (2) · Albert Tribelhorn (2) · Theodor Zorn (2) · Jean Desbois (2) · Emanuel Spreekmeester (2)
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LTA (30) · navigation (10) · Design (10) · Frame (9) · dirigible (8) · propulsion (8) · Hybrid (7) · Airplane (7) · ascension (6) · construction (6) · Helicopter (5) · propellers (5) · rigid (5) · Balloon (5) · Airship (5) · suspension (4) · balloons (4) · Control (4)
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