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Patents > Office : DE or SU or US or Other & Tech fields : airplane or balloon & Supplementary to patent: None & National tech categories: FR 6.4

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None (91) · Armengaud jeune (87) · None (32) · Charles Dony (29) · Hippolyte Josse (24) · Weismann et Marx (20) · L. Chassevent (20) · G. de Mestral et F. Harlé (17) · E. Blétry (14) · J. Bonnet-Thirion (14) · J. Germain (13) · Dupont et Elluin (12) · Brandon Frères (11) · Lavoix et Mosès (11) · H. Bœttcher fils (10) · Schwab (9) · Boramé et Julien (8) · Émile Bert (8) · Louis Tailfer (7) · Paul Blum (7)
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IPCs:
IPC B64C17/00 (116) · IPC B64C1/00 (104) · IPC B64C39/00 (81) · None (35) · IPC B64C3/00 (31) · IPC B64C23/00 (26) · IPC B64C25/00 (22) · IPC B64B1/00 (22) · IPC B64C13/00 (20) · IPC B64C3/38 (19) · IPC B64C3/54 (17) · IPC B64B1/58 (17) · IPC B64C17/06 (13) · IPC B64C3/56 (11) · IPC B64C3/52 (10) · IPC B64C11/00 (9) · IPC B64C33/02 (8) · IPC B64C3/42 (7) · IPC B64D35/04 (7) · IPC B64C35/00 (7)
CPCs:
CPC B64C17/00 (123) · CPC B64C39/00 (72) · CPC B64C2700/6295 (49) · CPC B64C2700/6218 (47) · CPC B64C3/00 (31) · CPC B64C13/00 (28) · CPC B64C23/005 (25) · CPC B64C1/00 (24) · CPC B64B1/00 (22) · CPC B64C2700/6212 (21) · CPC B64C3/385 (20) · CPC B64C25/06 (19) · CPC B64C2700/6256 (18) · CPC B64B1/58 (17) · CPC B64C17/06 (14) · CPC B64C2700/6274 (14) · CPC B64F2700/6226 (13) · CPC B64C3/54 (13)
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