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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 > Inventor country :
CAorGBorNL& Applicant type :
Hermann BurkardtorINDIV& Tech fields:
frame& Application number:
None& Grant date:
1910 - 1919& Related to aircraft :
-1orNone& Cites these patents:
None