Drilldown: Patents
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- Airplane (18)
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- Letters (683)
- Organizations (964)
- Patents (17538)
- Person (2109)
- Publications (24559)
- Techtypes (2373)
Patents > Year filed:
1870 - 1879
& Office
:
BE
or
Other
& Applicant firm:
None
& IPCs
:
IPC B64B1/00
or
IPC B64C29/00
or
IPC B64C39/00
& CPCs
:
CPC B22D33/00
or
CPC B64B1/00 ![](/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)
Use the filters below to narrow your results.
Showing below up to 3 results in range #1 to #3.