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Patents > National tech categories : USPC 244/22 or USPC 244/70 & Family year: 1900 - 1909

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Office:
Inventors:
Edward Hoult (2) · Julius Uherkovich de Uherkocz (2) · Bartholomew Connolly (2) · Ruter William Springer (2)
Inventor country:
Applicant person:
None (2) · Edward Hoult (2) · Ruter William Springer (2) · Julius Uherkovich de Uherkócz (2) · Bartholomew Connolly (2)
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Tech fields:
flapping (23) · propulsion (21) · navigation (17) · frame (12) · propeller (10) · LTA (10) · ornithopter (9) · airplane (8) · hybrid (6) · rudder (6) · airfoil (6) · marine (6) · stability (5) · aerodrome (5) · parachute (4) · landing (4) · None (4) · car (4) · wings (4)
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None (3)
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Citations from after 1930:
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Showing below up to 47 results in range #1 to #47.

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