Drilldown: Patents
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Patents > Inventor country:
NL
& Applicant type
:
INDIV
or
INDIV + COMPANY
or
А. Нейфельд
& Filing date:
1912 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 7 results in range #1 to #7.