Drilldown: Patents

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Patents > Number of text pages: 13-20

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Office:
Inventors:
Isaac Bell (2) · James Edward Fraser (2) · Charles Arthur Wragg (2) · Elmer Ambrose Sperry (2)
Inventor country:
Applicant person:
None (11) · Charles Arthur Wragg (2) · James Edward Fraser (2) · Elmer Ambrose Sperry (2)
Applicant is inventor:
Tech fields:
airplane (15) · stability (10) · design (10) · None (8) · frame (8) · propulsion (7) · navigation (7) · construction (6) · LTA (6) · propeller (5) · rudder (4) · gyroscope (4) · wings (4) · aerodynamics (4) · fuselage (3) · whole (3) · airfoil (3) · propellers (3) · electricity (3) · instrument (3)
Full specification filed date:
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Related to aircraft:
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Citations from after 1930:

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