Drilldown: Patents
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- Airplane (18)
- Airship (15)
- Companies (480)
- Event (141)
- Letters (683)
- Organizations (965)
- Patents (17611)
- Person (2128)
- Publications (24568)
- Techtypes (2379)
Patents > Year filed:
1900 - 1909
& Inventor country
:
FR
or
RO
& National tech categories
:
AT 77d
or
DE 77
or
FR 6.3
& IPCs
:
IPC B64C27/04
or
IPC B64C35/00
or
IPC B64C39/00
& CPCs:
CPC B64C39/005 ![](/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)
![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
Use the filters below to narrow your results.
Showing below up to 6 results in range #1 to #6.