Drilldown: Patents

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Patents > Family year: 1910 - 1919 & Number of text pages: 14-40

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Office:
Inventors:
Alfred John Macy (4) · Elmer Ambrose Sperry (2) · De Bert Hartley (2)
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Applicant person:
Alfred John Macy (4) · None (2) · De Bert Hartley (2) · Elmer Ambrose Sperry (2)
Applicant is inventor:
Tech fields:
airplane (11) · stability (11) · frame (7) · None (6) · design (6) · construction (4) · gyroscope (4) · wings (4) · aerodynamics (4) · HTA (3) · propellers (3) · propulsion (3)
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Related to aircraft:
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Citations from after 1930:
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Showing below up to 43 results in range #1 to #43.

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