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Patents > Office : FR or GB or LU & Inventor country: US & Grant date: 1890 - 1899

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propeller (7) · LTA (5) · propulsion (5) · navigation (4) · frame (4) · rudder (4) · airplane (3) · stability (2) · kite (2) · instrument (2) · hydrogen (2) · helicopter (2) · cybernetics (2) · compass (2) · subsystem (2) · car (2) · barometer (2) · wheels (2) · airfoil (2)
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Showing below up to 16 results in range #1 to #16.

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