Drilldown: Patents

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Patents > Patent agent: None & CPCs: None & Number of claims: 4-20

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Office:
Applicant is inventor:
Tech fields:
Airplane (138) · Design (82) · Frame (75) · propellers (54) · stability (50) · Construction (48) · propulsion (46) · LTA (45) · whole (44) · Subsystem (40) · wings (33) · Airship (31) · Control (29) · Aerodynamics (26) · propeller (24) · Flapping (20) · Helicopter (19) · automatic stability (17) · lift (16) · navigation (16)
Full specification filed date:
Application number:
None (202) · 25941D (4)
Granted:
Supplementary to patent:
None (207) · Patent GB-1909-2111 (4) · Patent SE-1906-23283 (4) · Patent GB-1908-4519 (4) · Patent AT-1911-57225 (4) · Patent US-1903-821393 (3) · Patent AT-1912-64662 (2) · Patent DE-1907-214228 (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent DE-1895-98580 (2) · Patent GB-1909-26034 (2) · Patent CH-1899-18666 (2) · Patent DE-1909-220044 (2) · Patent 1915-11-05 Käthe Paulus (2) · Patent ES-1911-50083‎ (2)
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National tech categories:
HU V/h (163) · AT 77d (50) · None (47) · DK 77 (16) · DE 77 (7) · AU 90.3 (5) · AU 90.5 (4) · AT 74 (3) · CA 244/12 (3) · GB 4 propel & steer (2) · CA 244/29 (2) · CA 244/31 (2) · CA 244/35 (2) · AT 65b (2) · DE 77h (2) · AT 37a (2) · DE 42c.35 (2)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of diagram pages:

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