Drilldown: Patents
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- Publications (24554)
- Techtypes (2370)
Patents > Filing date:
1890 - 1899
& National tech categories
:
USPC 244/153R
or
USPC 244/154
& IPCs:
IPC B64C31/06 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
Use the filters below to narrow your results.
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Showing below up to 8 results in range #1 to #8.