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Patents > Inventor country: US & Filing date: 1890 - 1899 & Number of text pages: 3

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LTA (12) · propulsion (10) · navigation (9) · frame (6) · balloon (4) · marine (3) · parachute (3) · propeller (3) · flapping (3) · kite (3) · car (3) · railway (2) · electric (2) · rudder (2) · stability (2) · ascension (2)
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