Drilldown: Patents
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- Airplane (18)
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- Letters (683)
- Organizations (965)
- Patents (17591)
- Person (2126)
- Publications (24566)
- Techtypes (2376)
Patents > Year granted:
1912
& Office
:
BE
or
CH
or
DE
or
UN
& IPCs
:
IPC B64C27/04
or
IPC B64C3/00
or
IPC B64C35/00 ![](/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)
![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.