Drilldown: Patents
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Patents > Office
:
AH
or
BE
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IN
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US
& Related to aircraft
:
0
or
0.5
or
Jan 15, 1908
or
navigation
or
rudder
& National tech categories:
USPC 244/3.29
& CPCs:
CPC F42B10/16
& Number of text pages:
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