Drilldown: Patents
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Patents > Year filed:
1890 - 1899
& Office :
BE or
US
& Filing date:
1890 - 1899
& Application number:
None
& Granted:
Yes
& Related to aircraft :
0.5 or
1908-12-31 or
1909-11-30 or
Other
& IPCs:
IPC B64B1/00
& Citations from after 1930:
None
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