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Patents > Patent agent : E. E. Vrooman or Munn & Co. & Number of claims: 5-10

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Office:
Inventors:
John Washington Wadsworth (2) · Harry E. Rose (2) · Eli Edward Gregory (2)
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Applicant person:
None (3) · Harry E. Rose (2) · Eli Edward Gregory (2) · John Washington Wadsworth (2)
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Applicant is inventor:
Tech fields:
propulsion (15) · None (12) · airplane (12) · stability (9) · frame (8) · LTA (8) · navigation (7) · flapping (7) · propeller (6) · car (6) · rudder (5) · hybrid (5) · airfoil (4) · ornithopter (4) · propellers (4) · lift (3) · control (3) · mooring (3) · sail (3) · Human-powered (3)
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National tech categories:
None (11) · USPC 244/64 (5) · USPC 244/233 (5) · USPC 244/22 (3) · USPC 244/89 (2) · USPC 244/93 (2)
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Citations from after 1930:
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