Drilldown: Patents
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Patents > Year granted:
1912
& Office
:
BE
or
CH
or
GB
or
UN
& IPCs:
IPC B64C3/00
& CPCs:
CPC B64C2700/6235 ![](/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)
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