Drilldown: Patents

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Patents > Tech fields : navigation or propellers & Number of figures: 3-20

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Inventor location:
None (964) · Budapest (21) · Seine (11) · Berlin (6) · New York (5) · New York city (5) · New York county (5) · Paris (5) · Pennsylvania (5) · Aude (4) · St. Louis (4) · Missouri (4)
Applicant firm:
None (1040) · Sperry Gyroscope Company (7) · A. Wunderlich & Cie, Ingénieurs-Conseils (4) · Ateliers d'aviation Louis Bréguet (3) · Borrmann and Kaerting (3) · British and Colonial Aeroplane Co. (3) · Westinghouse Electric & Manufacturing Company (2) · Motorluftschiff Studiengesellschaft m.b.H (2) · Société Anonyme Astra (2) · Société Anonyme des Établissements Nieuport (2)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Application number:
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Related to aircraft:
Assigned to:
None (1056) · Sperry Gyroscope Company (6) · Westinghouse Electric & Manufacturing Company (2)
National tech categories:
FR 6.4 (281) · None (262) · HU V/h (63) · FR 6.2 (38) · AT 77d (29) · FR 6.3 (28) · DE 77 (25) · USPC 244/30 (14) · USPC 244/90R (12) · USPC 244/66 (11) · GB 4 propel & steer (11) · USPC 244/51 (11) · USPC 244/6 (10) · USPC 244/70 (10) · DK 77 (10) · USPC 244/22 (10) · CH 115 (9) · USPC 244/80 (9)
IPCs:
None (489) · IPC B64C39/00 (63) · IPC B64B1/00 (58) · IPC B64C11/00 (44) · IPC B64C23/00 (31) · IPC B64C1/00 (23) · IPC B64C17/00 (22) · IPC B64C27/04 (19) · IPC B64C33/02 (18) · IPC B64C11/16 (17) · IPC B64C11/20 (17) · IPC B63H1/12 (17) · IPC B64C11/04 (15) · IPC B64B1/58 (14) · IPC B64C3/38 (13) · IPC CPC B64C13/00 (13) · IPC B64C13/00 (10) · IPC B64C3/52 (9) · IPC B64C33/00 (9)
First filing:
Citations from after 1930:
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