Drilldown: Patents
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Choose a table:
- Airplane (18)
- Airship (15)
- Companies (480)
- Event (141)
- Letters (683)
- Organizations (966)
- Patents (17613)
- Person (2134)
- Publications (24568)
- Techtypes (2381)
Patents > Year granted:
1850 - 1859
& Filing date:
1800 - 1899
& Granted:
Yes
& Supplementary to patent
:
Patent FR-1891-216860
or
Patent FR-1910-423792
or
None
& CPCs
:
CPC B64C23/005
or
CPC B64C2700/6274
or
CPC F42B10/30 ![](/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 4 results in range #1 to #4.