Drilldown: Patents
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Patents > Grant date:
1890 - 1899
& Related to aircraft
:
DE 369478
or
Yes
& National tech categories
:
DE 77h
or
USPC 244/30
or
USPC 244/45R
or
USPC 244/90R ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 6 results in range #1 to #6.