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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:
1920 - 1929& Inventors:
Henry E. Krammer& Tech fields:
None& Grant date:
1927& Supplementary to patent:
None& Related to aircraft:
1& Assigned to:
None& Cites these patents:
Patent US-1920-376325