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Patents > National tech categories : FR 5 or FR 6.3 or USPC 244/30 & IPCs: None

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LTA (160) · Navigation (147) · propulsion (108) · balloon (82) · Aerostat (48) · None (43) · dirigible (40) · airship (27) · balloons (25) · airplane (25) · safety (19) · construction (16) · propellers (15) · dirigibles (15) · ascension (14) · stability (14) · parachute (13) · infrastructure (12) · hybrid (12) · propeller (12)
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None (477) · Patent FR-1878-124576 (3) · Patent FR-1881-142748 (3) · Patent FR-1891-217128 (2) · Patent FR-1893-233439 (2) · Patent FR-1893-228892 (2) · Patent FR-1897-271948 (2) · Patent FR-1892-225358 (2) · Patent FR-1898-275602 (2) · Patent DE-1892-73603 (2) · Patent FR-1881-143296 (2) · Patent FR-1890-205155 (2) · Patent FR-1850-10514 (2)
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None (280) · Armengaud jeune (20) · Blétry aîné (17) · Desnos (15) · Chassevent (14) · Société Marillier et Robelet (12) · Armengaud aîné (10) · Dieuaide (9) · Dumas (8) · Société Louis Gudman et Cie (7) · Jules Mathieu (6) · Émile Barrault (6) · Casalonga (6) · Thirion (5) · Josse (5) · Société Matray frères (5)
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