Drilldown: Patents

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Patents > Tech fields : Control or lift or propeller or stability & Family year: 1900 - 1909

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Inventor country:
FR (339) · US (246) · GB (135) · DE (97) · AT (38) · HU (35) · BE (20) · IT (19) · None (18) · NZ (9) · CA (8) · SE (7) · RU (7) · AU (6) · CH (6) · NL (6) · VN (5) · MX (5) · ES (4) · DK (4)
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National tech categories:
FR 6.4 (306) · None (232) · FR 6.3 (34) · HU V/h (29) · AT 77d (19) · DE 77h.5 (18) · DE 77h.6 (14) · BE K (13) · RU Group V (13) · USPC 244/80 (11) · USPC 244/6 (10) · USPC 244/35R (10) · USPC 244/66 (9) · USPC 244/22 (8) · USPC 244/87 (8) · USPC 244/93 (8)
IPCs:
None (456) · IPC B64C17/00 (79) · IPC B64C1/00 (63) · IPC B64C39/00 (54) · IPC B64B1/00 (54) · IPC B64C13/00 (31) · IPC B64C23/00 (31) · IPC B64C3/38 (20) · IPC B64C33/02 (17) · IPC B64C11/00 (14) · IPC B64C17/06 (12) · IPC B64C27/04 (11) · IPC B64C3/54 (11) · IPC B64C33/00 (10) · IPC B64B1/40 (10) · IPC B64D35/04 (9) · IPC B64C3/52 (9) · IPC B64B1/58 (9)
CPCs:
None (250) · CPC B64C17/00 (99) · CPC B64B1/00 (68) · CPC B64C23/005 (55) · CPC B64C13/00 (46) · CPC B64C2700/6295 (44) · CPC B64C39/00 (41) · CPC B64C33/02 (31) · CPC B64C2700/6218 (28) · CPC B64C3/385 (26) · CPC B64C2700/6212 (25) · CPC B64C2700/6274 (24) · CPC B64C2700/6256 (20) · CPC B64C11/006 (19) · CPC B64C39/005 (17) · CPC B64C1/00 (15) · CPC B64C17/06 (13) · CPC B64C3/52 (13)
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Citations from after 1930:
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