Drilldown: Patents
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- Airplane (18)
- Airship (15)
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- Event (141)
- Letters (683)
- Organizations (964)
- Patents (17537)
- Person (2106)
- Publications (24555)
- Techtypes (2373)
Patents > Year granted:
1890 - 1899
& Office:
DE
& Application number
:
344263D
or
Z0010258
or
None
& CPCs
:
CPC B64C23/005
or
CPC B64C2700/6235
or
CPC B64C2700/6295 ![](/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)
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.