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Patents > Tech fields : Dirigible or stability & CPCs: None

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Inventor country:
FR (102) · DE (70) · GB (57) · None (52) · US (48) · HU (36) · IT (21) · AT (20) · CH (13) · BE (13) · RU (13) · AH (7) · AU (6) · NZ (5) · Poland (5) · NO (5) · Galicia (5) · CA (4) · ES (4)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (404) · 25941D (3)
Granted:
Supplementary to patent:
None (290) · Patent US-1913-04-21 George Raymond Lawrence (6) · Patent GB-1908-4519 (6) · Patent GB-1909-26034 (5) · Patent FR-1912-447782 (5) · Patent GB-1909-2111 (5) · Patent BE-1911-05-15 Georges de Bothezat (5) · Patent AT-1900-12657 (4) · Patent HU-1901-24148 (4) · Patent FR-1909-399456 (4) · Patent GB-1903-27212 (4) · Patent NO-1915-12-15 Carl Alfred Johansson (4) · Patent FR-1898-275602 (3) · Patent FR-1898-278192 (3) · Patent AU-1911-510 (3) · Patent FR-1905-361570 (3)
Related to aircraft:
Patent agent:
None (320) · Haseltine, Lake & Co. (7) · E. Blum & Co. (6) · Henry Hughes (5) · Raclot (4) · Armengaud jeune (3) · H. Kirchhofer (3) · E. et G. Bede (3) · Chassevent (3) · Wm. P. Thompson & Co. (3) · A. Wunderlich & Cie, Ingénieurs-Conseils (3)
National tech categories:
None (128) · HU V/h (57) · FR 6.3 (46) · BE K (44) · AT 77d (34) · IT 8 (25) · CH 129b (18) · DE 77 (16) · DK 77 (11) · RU Group V (9) · AU 90.3 (9) · FR 6.4 (6) · DE 77h (6) · FR 5 (5) · DE 77h.5 (5) · GB 4 aëroplanes (4) · GB 4 propel & steer (4) · GB 4 with buoyant (3) · CH 115 (3) · CA 341/80 (3)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of diagram pages:

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