Drilldown: Patents
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Patents > Office
:
DE
or
GR
or
Other
or
None
& Applicant type
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1
or
FIRM
or
None
& National tech categories
:
USPC 244/153R
or
USPC 244/72
& IPCs
:
IPC B64C31/06
or
None
& Number of text pages:
1 ![](/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.