Drilldown: Patents
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Patents > Office:
FR
& Supplementary to patent:
None
& Related to aircraft
:
1/2
or
1912-01-30
or
No
or
`1
or
Other
& National tech categories:
FR 12.3 ![](/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)
![](/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.
aerodynamics (1) ·
airplane (3) ·
altimeter (1) ·
automatic stability (1) ·
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fueling (1) ·
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instrument (3) ·
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marine (1) ·
navigation (1) ·
propeller (1) ·
speed (1) ·
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Showing below up to 7 results in range #1 to #7.