Drilldown: Patents
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Patents > Year filed:
1830 - 1839
& Related to aircraft
:
-1
or
0.5
or
Yes
& Assigned to:
None
& IPCs:
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Use the filters below to narrow your results.
Showing below up to 9 results in range #1 to #9.