Drilldown: Patents

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Patents > Office: US & Grant date: 1900 - 1909 & Number of claims: 9-12

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Office: (Click arrow to add another value)
Inventors:
Charles F. Roper (2) · James Means (2)
Inventor country:
Applicant person:
None (3) · Charles F. Roper (2) · James Means (2)
Applicant is inventor:
Tech fields:
propulsion (15) · navigation (11) · airplane (10) · propeller (10) · stability (7) · frame (6) · airfoil (5) · LTA (5) · None (5) · car (4) · flapping (4) · parachute (3) · wheels (3) · aerodrome (3) · marine (3) · hybrid (3)
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Related to aircraft:
National tech categories:
None (11) · USPC 244/72 (3) · USPC 244/6 (3) · USPC 244/90R (2) · USPC 244/70 (2) · USPC 244/19 (2) · USPC 244/63 (2)
First filing:
Citations from after 1930:
Number of text pages:
Number of claims:
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