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Notice: Trying to access array offset on value of type int in /home/econterm/econterms.net/aero/extensions/Cargo/drilldown/CargoFilterValue.php on line 79 Drilldown: Patents - Inventing aviation
Patents > Year filed:
1890 - 1899& Office :
BEorUS& Tech fields:
communications& Granted:
Yes& Related to aircraft :
0.5or1909-11-30orOther& Assigned to :
1orWilliam R. Gray& Cites these patents:
None