Drilldown: Patents
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Patents > Office
:
DE
or
HU
& National tech categories
:
DE 77h.2
or
DE 77h.5
or
USPC 244/22
& IPCs:
IPC B64C3/44
& CPCs
:
CPC B64C2700/6212
or
CPC B64C2700/6235
or
CPC B64C3/44
& First filing:
Yes
& Number of diagram pages:
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.