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Patents > Year granted: 1910 - 1919 & National tech categories : DE 77h.4 or FR 6.2 & Number of text pages: 1-2

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André-Julien Mahoudeau (7) · Antoine-Padoue Filippi (5) · None (4) · Louis-Pierre-Guilhaume Balestrié (3) · Rudolf Wagner (3) · Louis-Marie Le Dantec (2) · Pierre Levasseur (2)
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propellers (25) · Propulsion (22) · LTA (17) · Design (14) · marine (8) · Subsystem (8) · balloon (8) · frame (7) · aerodynamics (6) · gas (4) · Ascension (4) · airship (4) · airplane (4) · Construction (4) · control (3) · rigid (3) · Navigation (3) · material (3) · compartments (3)
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