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Patents > Tech fields : propeller or None & Number of figures: 3-4

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None (376) · Patent BE-1910-12-28-Muehter (3) · Patent DE-1899-123884 (3) · Patent US-1912-1080531 (2) · Patent NZ-1909-25865 (2) · Patent DE-1916-332540 (2) · Patent GB-1908-28547 (2) · Patent US-1912-1077892 (2) · Patent FR-1909-408197 (2) · Patent GB-1910-5703 (2) · Patent FR-1909-410140 (2) · Patent BE-1912-02-07-Gramaticesco (2) · Patent US-1911-1032812 (2)
Related to aircraft:
Patent agent:
None (131) · None (16) · Chassevent (8) · Munn & Co. (6) · Brewer & Son (5) · Victor J. Evans (5) · C. A. Snow & Co. (4) · L. Chassevent (4) · J. Bonnet-Thirion (4) · Phillipss (4) · Schwab (4)
National tech categories:
None (150) · FR 6.4 (92) · DE 77h.6 (18) · USPC 244/45R (9) · DE 77h.5 (9) · AT 77d (8) · DE 77 (6) · DE 77h (6) · USPC 244/6 (5) · FR 6.3 (5) · USPC 244/233 (4) · USPC 244/80 (4) · USPC 244/20 (3) · USPC 244/25 (3) · USPC 244/87 (3) · CH 129b (3) · FR 6.2 (3)
IPCs:
None (211) · IPC B64C39/00 (33) · IPC B64C3/38 (19) · IPC B64C17/00 (15) · IPC B64C23/00 (13) · IPC B64C1/00 (12) · IPC B64C3/00 (12) · IPC B64C13/00 (10) · IPC B64B1/00 (10) · IPC B64C11/00 (9) · IPC B64C35/00 (8) · IPC B64C3/54 (7) · IPC B64C11/16 (6) · IPC B64C33/02 (6) · IPC B64C29/00 (4) · IPC B64B1/58 (4) · IPC B64C25/00 (4)
CPCs:
None (58) · CPC B64C2700/6295 (37) · CPC B64C3/385 (26) · CPC B64C23/005 (23) · CPC B64C39/00 (22) · CPC B64C17/00 (21) · CPC B64C13/00 (17) · CPC B64B1/00 (17) · CPC B64C11/006 (15) · CPC B64C3/00 (12) · CPC B64C39/08 (11) · CPC B64C2700/6218 (9) · CPC B64C2700/6274 (9) · CPC B64C11/48 (9) · CPC B64C3/14 (8) · CPC B64C33/02 (8) · CPC B64C35/00 (8) · CPC B64C39/005 (8) · CPC B64C2700/6256 (7)
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