Drilldown: Patents
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Patents > National tech categories:
USPC 244/13 
& Number of claims:
5-9
& Number of diagram pages:
1-2
& Number of claims:
5-9
& Number of diagram pages:
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airplane (5) ·
biplane (1) ·
car (1) ·
frame (4) ·
landing (2) ·
marine (1) ·
mooring (1) ·
multiplane (1) ·
navigation (5) ·
parachute (1) ·
propeller (3) ·
propulsion (3) ·
rudder (4) ·
sail (1) ·
stability (3) ·
takeoff (3) ·
wheels (3)
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