Drilldown: Patents
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Patents > Office
:
DE
or
NZ
& Applicant type
:
INDIV
or
А. Нейфельд
& Supplementary to patent:
Patent DE-1917-305040
& CPCs
:
CPC B64C11/34
or
CPC B64C39/005 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.