Drilldown: Patents
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Patents > Office
:
CU
or
FR
or
GB
or
SU
& Full specification filed date:
1909
& Grant date:
1910 - 1919
& National tech categories:
None
& CPCs
:
CPC B64C13/00
or
CPC B64C2700/6256
& Number of diagram pages:
2 ![](/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 2 results in range #1 to #2.