Drilldown: Patents

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Patents > Year granted: 1900 - 1999 & Tech fields: propeller & Granted : No or Yes

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Supplementary to patent:
None (467) · Patent GB-1909-12556 (7) · Patent DE-1899-123884 (5) · Patent FR-1904-340154 (4) · Patent GB-1911-5162 (4) · Patent US-1906-850616 (3) · Patent FR-1909-410140 (3) · Patent DE-1917-305040 (3) · Patent DE-1907-194165 (3) · Patent DE-1913-293131 (3) · Patent FR-1902-328044 (3) · Patent DE-1913-290120 (3) · Patent GB-1908-13809 (3) · Patent DE-1916-332540 (3)
Related to aircraft:
Patent agent:
None (282) · Munn & Co. (13) · Victor J. Evans (10) · None (8) · Armengaud jeune (7) · Watson E. Coleman (6) · Schwab (5) · R. S. & A. B. Lacey (5) · Haseltine, Lake & Co. (5) · Henry Hughes (4) · Chassevent (4) · Marks & Clerk (4) · Michael J. Stark & Sons (4) · 0 (4)
National tech categories:
None (146) · FR 6.4 (55) · DE 77h.6 (38) · AT 77d (24) · USPC 244/6 (12) · USPC 244/66 (10) · USPC 244/22 (10) · DE 77h.5 (9) · USPC 244/51 (8) · USPC 244/25 (8) · DE 77h (8) · USPC 244/73R (8) · USPC 244/13 (8) · FR 6.3 (8) · IT 8 (7) · USPC 244/72 (7) · FR 6.2 (7) · USPC 244/17.21 (7)
IPCs:
None (400) · IPC B64B1/00 (20) · IPC B64C11/00 (15) · IPC B64C23/00 (12) · IPC B64C39/00 (12) · IPC B64C11/16 (12) · IPC B64C33/02 (9) · IPC B64C33/00 (7) · IPC B64C11/20 (7) · IPC B64C27/00 (7) · IPC B64C11/04 (6) · IPC B64C11/30 (5) · IPC B64C27/04 (5) · IPC B64C11/34 (4) · IPC B64C17/00 (4) · IPC B64C29/00 (4) · IPC B64C3/14 (4)
CPCs:
None (162) · CPC B64C23/005 (40) · CPC B64B1/00 (40) · CPC B64C11/006 (25) · CPC B64C33/02 (21) · CPC B64C2700/6295 (19) · CPC B64C39/005 (13) · CPC B64C11/48 (13) · CPC B64C17/00 (13) · CPC B64C11/04 (11) · CPC B64C27/82 (10) · CPC B64C11/00 (9) · CPC B64C11/16 (9) · CPC B64C39/08 (9) · CPC B64C3/14 (8) · CPC B64C9/00 (8) · CPC B64C3/385 (8) · CPC B64C27/54 (7)
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Citations from after 1930:
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