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Patents > Tech fields: navigation & Number of text pages: 2-8

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Applicant is inventor:
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Supplementary to patent:
None (483) · Patent US-1909-970771 (8) · Patent FR-1907-377174 (4) · Patent FR-1902-328044 (4) · Patent FR-1909-420004 (3) · Patent US-1903-821393 (3) · Patent US-1906-850616 (3) · Patent CH-1899-18666 (3) · Patent DE-1909-Wilcke-Graff (3) · Patent GB-1912-2540 (3) · Patent FR-1899-Boinet (3) · Patent FR-1908-393976 (3) · Patent AT-1912-75092 (3)
Related to aircraft:
Assigned to:
None (622) · Sperry Gyroscope Company (5)
National tech categories:
FR 6.4 (133) · None (131) · FR 6.3 (27) · DE 77 (21) · USPC 244/30 (16) · AT 77d (16) · DE 77h.5 (12) · USPC 244/90R (12) · USPC 244/51 (11) · GB 4 propel & steer (11) · USPC 244/6 (10) · USPC 244/70 (10) · USPC 244/66 (9) · USPC 244/93 (9) · USPC 244/234 (8) · USPC 244/26 (8) · DK 77 (8) · USPC 244/46 (8)
IPCs:
None (322) · IPC B64B1/00 (60) · IPC B64C39/00 (26) · IPC B64B1/58 (17) · IPC B64C3/38 (16) · IPC B64C33/02 (15) · IPC CPC B64C13/00 (12) · IPC B64C1/00 (12) · IPC B64C23/00 (11) · IPC B64C13/00 (11) · IPC B64C3/52 (10) · IPC B64C17/00 (8) · IPC B64B1/62 (8) · IPC B64C33/00 (8) · IPC B64C13/04 (7) · IPC B64C3/00 (7) · IPC B64C9/00 (6) · IPC B64C13/02 (6) · IPC B64B1/40 (6) · IPC B64C11/00 (6)
CPCs:
None (148) · CPC B64B1/00 (81) · CPC B64C13/00 (47) · CPC B64C23/005 (37) · CPC B64C39/005 (23) · CPC B64C33/02 (23) · CPC B64C17/00 (21) · CPC B64C3/385 (17) · CPC B64B1/58 (17) · CPC B64C2700/6295 (17) · CPC B64C3/52 (13) · CPC B64C9/00 (12) · CPC B64C39/00 (10) · CPC B64C39/08 (9) · CPC B64C2700/6256 (9) · CPC B64C13/04 (9) · CPC B64B1/40 (9)
First filing:
Citations from after 1930:
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