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Patents > National tech categories : FR 6.3 or USPC 244/93 & Number of diagram pages: None

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LTA (111) · navigation (105) · Propulsion (89) · balloon (46) · aerostat (38) · dirigible (35) · None (32) · airship (24) · balloons (23) · airplane (21) · safety (16) · construction (15) · stability (15) · Dirigibles (14) · ascension (12) · propellers (12) · instrument (10) · electricity (10)
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None (347) · Patent FR-1881-142748 (3) · Patent FR-1878-124576 (3) · Patent DE-1892-73603 (2) · Patent FR-1891-217128 (2) · Patent FR-1892-225358 (2) · Patent FR-1893-228892 (2) · Patent FR-1893-233439 (2) · Patent FR-1881-143296 (2) · Patent FR-1898-275602 (2) · Patent FR-1897-271948 (2) · Patent FR-1890-205155 (2)
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None (182) · Armengaud jeune (20) · Blétry aîné (17) · Desnos (15) · Chassevent (15) · Société Marillier et Robelet (12) · Armengaud aîné (10) · Dieuaide (9) · Dumas (8) · Société Louis Gudman et Cie (7) · Casalonga (6) · Émile Barrault (6) · Thirion (5) · Josse (5) · Société Matray frères (5) · Fayollet (4) · Nauhardt (4) · Blétry frères (4)
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