Drilldown: Patents
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Patents > Office
:
CA
or
GB
or
IT
& Inventor country:
US
& Publication date:
1900 - 1999
& Related to aircraft:
Yes
& Citations from after 1930:
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 11 results in range #1 to #11.