Drilldown: Patents
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Patents > Filing date:
1891
& Related to aircraft
:
1
or
Jan 15, 1908
or
Yes
& National tech categories
:
BE K
or
USPC 244/153R
or
USPC 244/3.23
& IPCs
:
IPC B64C3/54
or
IPC B64C31/00 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.