Drilldown: Patents
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Patents > Year filed:
1920 - 1929
& Related to aircraft
:
.5?
or
0
or
1
& Assigned to:
None
& IPCs:
IPC B64C9/02 ![](/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 2 results in range #1 to #2.