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Patents > Year granted: 1913 & First filing: Yes

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None (514) · Seine (10) · New York (6) · Budapest (6) · New York county (6) · Ohio (5) · Massachusetts (5) · New York City (5) · Hampden County, Massachusetts (4) · Springfield, Massachusetts (4) · Bouches-du-Rhône (4) · the Bronx (3) · Paris (3) · Hautes-Pyrénées (2) · Rhône (2) · St. Louis (2) · Marseille (2) · Loire (2) · Zsitvagyarmat (2) · Geneva (2)
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Supplementary to patent:
None (532) · Patent DE-1912-279343 (2) · Patent FR-1911-448337 (2) · Patent BE-1912-07-11 Maiche et Legras (2) · 1 (2)
Related to aircraft:
Patent agent:
None (247) · None (20) · Victor J. Evans (20) · Marks & Clerk (14) · Munn & Co. (10) · Dupont et Elluin (7) · L. Chassevent (6) · C. A. Snow & Co. (6) · W. P. Thompson & Co. (5) · P. Follin (5) · Hippolyte Josse (4) · Herbert Haddan & Co. (4) · E. E. Vrooman (4) · E. Blétry (4) · Boult, Wade & Tennant (4) · Dom. Casalonga (4) · Armengaud jeune (4)
National tech categories:
None (193) · FR 6.4 (125) · USPC 244/80 (15) · USPC 244/233 (12) · HU V/h (11) · USPC 244/45R (10) · USPC 244/90R (7) · USPC 244/93 (7) · USPC 244/234 (6) · USPC 244/48 (6) · USPC 244/13 (5) · USPC 244/87 (5) · AT 77d (5) · DE 77h (5)
IPCs:
None (320) · IPC B64C17/00 (43) · IPC B64C1/00 (31) · IPC B64C39/00 (21) · IPC B64C3/00 (17) · IPC B64B1/00 (14) · IPC B64C35/00 (12) · IPC B64C11/00 (12) · IPC B64C33/02 (11) · IPC B64C3/38 (11) · IPC B64C23/00 (10) · IPC B64C33/00 (7) · IPC B64C13/00 (6) · IPC B64D17/00 (6) · IPC B64B1/58 (6) · IPC B64C29/00 (3) · IPC B64C11/18 (3) · IPC B64C3/26 (3)
CPCs:
CPC B64C17/00 (71) · None (43) · CPC B64C2700/6295 (42) · CPC B64C13/00 (33) · CPC B64C35/00 (31) · CPC B64B1/00 (28) · CPC B64C39/00 (21) · CPC B64C23/005 (21) · CPC B64C3/385 (20) · CPC B64C2700/6218 (20) · CPC B64C3/00 (17) · CPC B64C33/02 (15) · CPC B64C39/08 (14) · CPC B64C11/006 (14) · CPC B64B1/58 (10) · CPC B64C2700/6212 (10) · CPC B64F2700/6261 (10) · CPC B64C2700/6274 (8) · CPC B64C33/00 (8) · CPC B64C39/005 (8)
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Citations from after 1930:

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