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Patents > Tech fields: frame & National tech categories : AT 77d or CH 129b or FR 6.4

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Supplementary to patent:
None (259) · Patent FR-1907-373818 (10) · Patent IT-1910-10-17 Carlo Navaro (4) · Patent US-1909-970771 (3) · Patent FR-1909-411204 (3)
Related to aircraft:
Patent agent:
None (129) · Armengaud jeune (65) · Weismann et Marx (15) · Charles Dony (15) · Dupont et Elluin (14) · J. Germain (13) · G. de Mestral et F. Harlé (11) · Lavoix et Mosès (11) · None (9) · L. Chassevent (9) · Boramé et Julien (9) · M. Zerolo (7) · Gaston Rose (7) · Paul Blum (6) · Hippolyte Josse (6) · Ch. Mardelet (5) · E. Blétry (5) · Brandon frères (5)
National tech categories: (Click arrow to add another value)
IPCs:
None (98) · IPC B64C39/00 (49) · IPC B64B1/00 (43) · IPC B64C17/00 (28) · IPC B64C1/00 (27) · IPC B64C3/00 (26) · IPC B64C25/00 (24) · IPC B64B1/58 (18) · IPC B64C35/00 (16) · IPC B64C23/00 (12) · IPC B64C3/18 (11) · IPC B64C3/38 (10) · IPC B64C3/54 (9) · IPC B64C33/02 (8) · IPC B64C3/56 (8) · IPC B64C13/00 (7) · IPC B64C3/48 (7) · IPC B64C3/52 (5) · IPC B64C31/04 (5)
CPCs:
None (90) · CPC B64C39/00 (48) · CPC B64B1/00 (42) · CPC B64C2700/6295 (41) · CPC B64C17/00 (28) · CPC B64C3/00 (26) · CPC B64C25/06 (18) · CPC B64B1/58 (17) · CPC B64C35/00 (14) · CPC B64C25/62 (13) · CPC B64C23/005 (12) · CPC B64C2700/6233 (11) · CPC B64C1/00 (11) · CPC B64F2700/6226 (11) · CPC B64C2700/6218 (11) · CPC B64C25/52 (10) · CPC B64C3/385 (10) · CPC B64C33/02 (9) · CPC B64C13/00 (9)
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