Drilldown: Patents

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Patents > Year granted: 1920 - 1929 & Inventor location: None & Related to aircraft: 1

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Applicant firm:
None (318) · Curtiss Aeroplane (18) · Zeppelin-Werke G.m.b.H. (5) · Société Anonyme des Établissements Nieuport (5) · Mercur Flugzeugbau (5) · Sperry Gyroscope Company (4) · Société des Avions Louis Bréguet (4) · AGO Flugzeugwerke G. m. b. H. (4) · Deutsche Flugzeug-Werke G. m. b. H. (3) · Otwi-Werke m.b.H. (3) · Luftschiffbau Zeppelin G. m. b. H. (3) · Helix Propeller G.m.b.H. (3) · Luftschiffbau Zeppelin (3) · Daimler-Motoren-Gesellschaft (3)
Applicant is inventor:
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Application number:
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Supplementary to patent:
None (364) · Patent FR-1916-501550 (8) · Patent FR-1916-502839 (3) · Patent US-1918-1589780 (3) · Patent FR-1915-502520 (2) · Patent DE-1921-384750 (2) · Patent DE-1917-305040 (2) · Patent FR-1917-493342 (2) · Patent DE-1916-332540 (2) · Patent CA-1918-192493 (2) · Patent DE-1919-319462 (2)
Related to aircraft: (Click arrow to add another value)
Patent agent:
None (222) · None (21) · John P. Tarbox (21) · Armengaud jeune (7) · Munn & Co. (6) · Marks & Clerk (5) · M. Zerolo (5) · J. Germain (5) · Herbert H. Thompson (5) · Dony and Lejeune (5) · Joseph F. O'Brien (4) · Brandon frères (3) · Paul Blum (3) · Fritz Isler (3) · Hippolyte Josse (3)
National tech categories:
None (223) · FR 6.4 (60) · DE 77h.5 (45) · DE 77h.6 (15) · DE 77h.9 (12) · FR 12.2 (10) · DE 77h.15 (9) · NL 62 (7) · DE 77h.7 (7) · AT 77d (6) · CH 129b (4) · NL 62.7 (3) · HU V/h (3) · FR 5.8 (3) · DE 77h.2 (3)
IPCs:
None (122) · IPC B64C3/00 (27) · IPC B64C35/00 (20) · IPC B64C17/00 (15) · IPC B64C1/00 (15) · IPC B64C25/00 (15) · IPC B64C39/00 (15) · IPC B64C11/04 (13) · IPC B64C13/00 (10) · IPC B64C11/00 (10) · IPC G01S1/72 (10) · IPC B64C13/12 (9) · IPC B64C3/38 (7) · IPC B64C11/20 (6) · IPC B64D27/00 (5) · IPC B64C3/56 (5) · IPC B64C11/34 (5) · IPC B64C11/16 (5) · IPC B64C27/04 (5)
First filing:
Citations from after 1930:
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