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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 > Tech fields:
Propellers& Application number:
12426D& Related to aircraft :
1852-08-14or1909-11-30ormooringorNone& Cites these patents:
None& Citations from after 1930:
None& Number of claims:
1-2