Drilldown: Patents

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Patents > Applicant firm: None & Tech fields : Construction or frame & Citations from after 1930: None

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Inventor country:
FR (529) · US (332) · DE (207) · GB (171) · IT (54) · None (48) · CH (40) · AT (37) · HU (34) · AU (27) · BE (27) · CA (18) · RU (18) · NL (11) · AH (10) · RO (10) · NZ (8) · ES (8) · Poland (7) · IE (6)
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Application number:
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Related to aircraft:
Assigned to:
None (1551)
National tech categories:
FR 6.4 (445) · None (359) · HU V/h (80) · AT 77d (57) · BE K (46) · FR 6.3 (39) · DE 77h.5 (22) · DE 77 (19) · DE 77h (18) · AU 90.3 (17) · IT 8 (16) · USPC 244/153R (16) · CH 129b (14) · GB 4 propel & steer (13) · USPC 244/22 (13) · USPC 244/90R (11) · GB 4 with buoyant (11)
IPCs:
None (755) · IPC B64C39/00 (89) · IPC B64B1/00 (89) · IPC B64C3/00 (56) · IPC B64C17/00 (56) · IPC B64C1/00 (55) · IPC B64B1/58 (38) · IPC B64C3/18 (34) · IPC B64C25/00 (29) · IPC B64C33/02 (25) · IPC B64C23/00 (24) · IPC B64C3/38 (22) · IPC B64C35/00 (19) · IPC B64C3/56 (19) · IPC B64C1/06 (19) · IPC B64C13/00 (15) · IPC B64C33/00 (14) · IPC B64C31/06 (12) · IPC B64B1/40 (11) · IPC B64C3/48 (11)
First filing:
Citations from after 1930:
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