Drilldown: Patents

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Patents > Grant date: 1890 - 1899 & Number of claims: 7-60 & Number of figures: 2-5

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frame (5) · navigation (4) · propeller (4) · military (3) · LTA (3) · car (3) · marine (2) · airfoil (2) · propulsion (2) · rocket (2) · hybrid (2) · glider (2) · None (2) · projectile (2) · electric (2) · balloon (2) · windmill (2)
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Showing below up to 17 results in range #1 to #17.

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