Drilldown: Patents

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Patents > National tech categories : AU 90.3 or USPC 244/45R & Number of figures: 5-20

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Office:
Inventors:
William Whitney Christmas (3) · Thomas Augustus Dring (2) · Ralph P. Fox (2) · Glenn Hammond Curtiss (2)
Inventor country:
Applicant person:
None (15) · Ralph P. Fox (2)
Applicant is inventor:
Tech fields:
frame (20) · airplane (18) · None (13) · stability (13) · whole (11) · airfoil (9) · propulsion (8) · propeller (8) · safety (7) · control (5) · marine (5) · design (5) · landing (5) · wings (5) · heavier-than-air (4) · hybrid (4) · helicopter (4)
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Citations from after 1930:
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Showing below up to 52 results in range #1 to #52.

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