Drilldown: Patents
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Patents > Year granted:
1909
& Applicant type :
FIRM or
INDIV or
А. Нейфельд
& Filing date:
1908
& Related to aircraft :
1 or
flapping
& IPCs:
IPC B64C17/00
& Number of diagram pages:
1
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Showing below up to 1 result in range #1 to #1.