Drilldown: Patents
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Patents > Office
:
DE
or
FR
or
RU
& Grant date:
1919
& Granted:
Yes
& Related to aircraft
:
.5
or
None
& National tech categories:
FR 6.4 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 5 results in range #1 to #5.