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Patents > National tech categories : FR 5 or FR 6.3 & IPCs : IPC B64C27/04 or None

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LTA (148) · navigation (141) · propulsion (103) · balloon (80) · aerostat (48) · dirigible (38) · None (34) · airship (28) · airplane (26) · balloons (25) · construction (17) · safety (17) · propellers (16) · dirigibles (15) · stability (14) · ascension (13) · infrastructure (12) · hybrid (12) · parachute (11) · instrument (10)
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None (458) · Patent FR-1881-142748 (3) · Patent FR-1878-124576 (3) · Patent FR-1898-275602 (2) · Patent FR-1890-205155 (2) · Patent FR-1881-143296 (2) · Patent FR-1891-217128 (2) · Patent FR-1892-225358 (2) · Patent FR-1893-228892 (2) · Patent FR-1893-233439 (2) · Patent FR-1897-271948 (2) · Patent FR-1850-10514 (2) · Patent DE-1892-73603 (2)
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None (262) · Armengaud jeune (22) · Blétry aîné (17) · Desnos (15) · Chassevent (14) · Société Marillier et Robelet (12) · Armengaud aîné (10) · Dieuaide (9) · Dumas (8) · Casalonga (7) · Société Louis Gudman et Cie (7) · Émile Barrault (6) · Jules Mathieu (6) · Société Matray frères (5) · Josse (5) · Thirion (5)
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