Drilldown: Patents

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Patents > Filing date: 1910 - 1919 & National tech categories : FR 6.4 or USPC 244/153R & IPCs: None & First filing: No

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Tech fields:
airplane (15) · stability (14) · frame (8) · propulsion (5) · None (4) · piloting (4) · propellers (4) · control (4) · aileron (3) · airfoil (3) · helicopter (3)
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Showing below up to 38 results in range #1 to #38.

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