Drilldown: Patents
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Patents > National tech categories
:
USPC 244/153R
or
USPC 244/30
or
USPC 244/80
& CPCs
:
CPC B64C11/006
or
CPC B64C13/00
& First filing:
Yes
& 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)
![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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