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Patents > Year filed: 1912 & Tech fields : Propulsion or airplane

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Supplementary to patent:
None (237) · Patent AU-1911-510 (7) · Patent GB-1911-12232 (7) · Patent BE-1911-05-15 Georges de Bothezat (6) · Patent GB-1911-5162 (4) · Patent GB-1911-29012 (4) · Patent CH-1912-62201 (4) · Patent BE-1911-240352 (3) · Patent BE-1911-11-17 (3) · Patent FR-1911-446282 (3) · Patent BE-1911-04-14 Lucien-Constant-Joseph Harel (3) · Patent GB-1911-12188 (3)
Related to aircraft:
Patent agent:
None (132) · Armengaud jeune (27) · Charles Dony (12) · None (11) · J. Bonnet-Thirion (8) · Hippolyte Josse (7) · Dupont et Elluin (7) · L. Chassevent (6) · H. Bœttcher fils (6) · G. de Mestral et F. Harlé (5) · Marks & Clerk (5) · E. Blétry (5) · Schwab (5) · G. H. Strong (5)
National tech categories:
FR 6.4 (199) · None (63) · HU V/h (24) · BE K (15) · AT 77d (14) · FR 6.2 (11) · CH 129b (8) · DE 77h.5 (5) · USPC 244/233 (5) · AU 90.3 (5) · NL 62 (4) · DK 77 (3) · USPC 244/93 (3)
IPCs:
None (140) · IPC B64C17/00 (60) · IPC B64C1/00 (48) · IPC B64C39/00 (31) · IPC B64C11/00 (17) · IPC B64C25/00 (16) · IPC B64C3/38 (14) · IPC B64C35/00 (12) · IPC B64C3/00 (9) · IPC B64C3/56 (8) · IPC B64C13/00 (6) · IPC B64C3/54 (4) · IPC B63H1/12 (4) · IPC B64C17/06 (3) · IPC B64C3/52 (3) · IPC B64C23/00 (3) · IPC B64D17/00 (3)
CPCs:
None (101) · CPC B64C17/00 (68) · CPC B64C39/00 (24) · CPC B64C2700/6218 (24) · CPC B64C2700/6295 (23) · CPC B64C13/00 (20) · CPC B64C3/385 (15) · CPC B64C25/06 (10) · CPC B64C11/00 (9) · CPC B64C3/00 (9) · CPC B64C3/56 (9) · CPC B64F2700/6226 (9) · CPC B64C2700/6212 (8) · CPC B64C11/006 (8) · CPC B64C2700/6256 (8) · CPC B64C25/64 (7) · CPC B64C35/00 (7)
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