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Patents > Year granted: 1911 & First filing : Yes or Other

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None (787) · Seine (13) · London (9) · Budapest (5) · Illinois (5) · Bexar county (4) · Chicago (4) · San Antonio (4) · TX (4) · Nord (3) · England (3) · PA (3) · New York (3) · County of London (3) · Pittsburgh (3) · New York City (3) · Seine-et-Oise (3) · Yorkshire (3) · Allegheny county, Pennsylvania (3)
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Supplementary to patent:
None (845) · Patent DE-1910-234453 (2) · Patent AT-1910-03-15 (2)
Related to aircraft:
National tech categories:
None (295) · FR 6.4 (233) · USPC 244/90R (18) · USPC 244/80 (18) · HU V/h (13) · USPC 244/66 (12) · USPC 244/48 (10) · USPC 244/22 (10) · USPC 244/6 (10) · USPC 244/139 (9) · USPC 244/45R (9) · FR 6.2 (8) · USPC 244/87 (7) · FR 5.8 (6) · USPC 244/144 (6) · USPC 244/89 (6) · USPC 244/233 (6) · DE 77h.5 (6) · AT 77d (6)
IPCs:
None (440) · IPC B64C17/00 (82) · IPC B64C1/00 (70) · IPC B64C39/00 (50) · IPC B64C23/00 (23) · IPC B64C3/38 (23) · IPC B64C13/00 (19) · IPC B64C11/00 (18) · IPC B64B1/00 (16) · IPC B64B1/58 (13) · IPC B64C25/00 (12) · IPC B64C17/06 (12) · IPC B64C3/00 (11) · IPC B64C33/00 (10) · IPC B64C33/02 (10) · IPC B64C11/16 (8) · IPC B64C5/04 (6)
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