Drilldown: Patents

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Patents > Family year: 1900 - 1909 & Citations from after 1930: 3-6 & Number of diagram pages: 1-2

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Tech fields:
propeller (9) · None (6) · LTA (5) · propulsion (4) · military (3) · airfoil (3) · stability (3) · helicopter (3) · navigation (2) · parachute (2) · projectile (2) · mooring (2) · frame (2) · takeoff (2)
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National tech categories:
None (11) · FR 6.4 (2) · USPC 244/3.23 (2) · USPC 244/110G (2)
CPCs:
CPC B63H1/12 (2) · CPC E02D5/803 (2) · CPC B64C11/48 (2) · CPC B64C11/343 (2) · CPC B64C11/306 (2) · CPC F42B10/30 (2)
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