Drilldown: Patents

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Patents > Office: US & Citations from after 1930: 4-30 & Number of claims: 11-50000000

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Tech fields:
propeller (5) · None (4) · stability (3) · landing (3) · LTA (2) · Propulsion (2)
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None (12) · USPC 416/244R (2)
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Showing below up to 23 results in range #1 to #23.

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