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Patents > Supplementary to patent: None & Patent agent : A. G. Evert & Co or Munn & Co. & Number of claims: 2-3

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LTA (8) · None (7) · military (6) · propulsion (5) · projectile (5) · stability (4) · propeller (4) · flapping (3) · frame (3) · marine (3) · hybrid (2) · marine propulsion (2) · safety (2) · aerial propeller (2) · navigation (2) · airplane (2)
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None (10) · USPC 244/3.23 (4)
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