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

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Inventor country:
FR (346) · US (314) · DE (122) · GB (110) · HU (48) · AT (28) · CH (20) · IT (20) · BE (18) · CA (14) · None (13) · AU (11) · AH (11) · RO (10) · RU (7) · NZ (5) · HR (5)
Applicant firm:
None (1035) · Sperry Gyroscope Company (7) · A. Wunderlich & Cie, Ingénieurs-Conseils (4) · Ateliers d'aviation Louis Bréguet (3) · British and Colonial Aeroplane Co. (3) · Westinghouse Electric & Manufacturing Company (2) · Motorluftschiff Studiengesellschaft m.b.H (2) · Borrmann and Kaerting (2) · Société Anonyme Astra (2) · Société Anonyme des Établissements Nieuport (2)
Applicant is inventor:
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Application number:
Granted:
Related to aircraft:
Assigned to:
None (1050) · Sperry Gyroscope Company (6) · Westinghouse Electric & Manufacturing Company (2)
National tech categories:
FR 6.4 (284) · None (262) · HU V/h (65) · FR 6.2 (38) · AT 77d (29) · FR 6.3 (28) · DE 77 (25) · USPC 244/30 (15) · USPC 244/90R (12) · GB 4 propel & steer (11) · USPC 244/6 (10) · USPC 244/70 (10) · DK 77 (10) · USPC 244/51 (10) · USPC 244/80 (9) · USPC 244/66 (9) · CH 115 (9) · CH 129b (8) · USPC 244/22 (8) · USPC 244/233 (8)
IPCs:
None (481) · IPC B64C39/00 (63) · IPC B64B1/00 (58) · IPC B64C11/00 (45) · IPC B64C23/00 (30) · IPC B64C1/00 (21) · IPC B64C17/00 (20) · IPC B63H1/12 (18) · IPC B64C27/04 (18) · IPC B64C33/02 (18) · IPC B64C11/16 (17) · IPC B64B1/58 (16) · IPC B64C11/20 (16) · IPC B64C11/04 (13) · IPC CPC B64C13/00 (13) · IPC B64C3/38 (13) · IPC B64C13/00 (10) · IPC B64C27/00 (9) · IPC B64C3/52 (9)
First filing:
Citations from after 1930:
Number of diagram pages:

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