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Patents > Supplementary to patent: None & National tech categories : FR 6.3 or USPC 416/119

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LTA (113) · navigation (97) · propulsion (92) · balloon (46) · aerostat (41) · dirigible (40) · airplane (31) · airship (26) · construction (25) · stability (24) · None (23) · propellers (20) · balloons (17) · ascension (17) · safety (16) · dirigibles (12) · design (11) · instrument (11) · steering (11)
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None (322)
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None (153) · Armengaud jeune (23) · Chassevent (20) · Blétry aîné (14) · Desnos (13) · None (12) · Armengaud aîné (8) · Société Marillier et Robelet (8) · Dumas (7) · Hippolyte Josse (6) · Société Matray frères (6) · Dieuaide (5) · Thirion (5) · Josse (5) · C. Blétry (5) · Société Louis Gudman et Cie (5) · Fayollet (4) · Blétry frères (4) · Société Thirion et Bonnet (4)
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CPCs:
None (309) · CPC B64B1/00 (46) · CPC B64C33/02 (6) · CPC B64C2700/6281 (5) · CPC B64C39/00 (5) · CPC B64B1/40 (4) · CPC Y02E10/74 (4) · CPC B64C39/005 (4) · CPC A63H27/08 (3) · CPC B64C27/04 (3) · CPC B64C23/005 (3) · CPC B64C11/006 (3) · CPC B64C27/12 (3) · CPC B64B1/58 (3) · CPC B64C2700/6295 (3)
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