Drilldown: Patents
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Patents > National tech categories
:
HU V/h
or
USPC 244/22
& IPCs:
None
& CPCs
:
CPC B64C11/006
or
CPC B64C3/385
or
CPC B64C33/02
or
None
& Number of claims:
3-5
& Number of figures:
8-9 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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