Drilldown: Patents
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Patents > Inventor country
:
AT
or
GB
or
NL
& Related to aircraft
:
.5
or
None
& IPCs
:
IPC B64C3/38
or
IPC CPC B64C13/00
& Family year:
1918
& Number of text pages:
3-4 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.