Drilldown: Patents
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Patents > Year granted:
1919
& Office
:
AT
or
LU
or
UN
& Grant date:
May 1919
& Number of figures:
4-6 ![](/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)
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Showing below up to 5 results in range #1 to #5.