. . "Merged withKeystone Aircraftin 1928" . . . . . . . . . . . "Loening" . . . . . . . . . "1928" . . . . . . . . . "1917" . . . . . . . . "Loening 1917" . . . . "Loening Aeronautical Engineering Corp." . . . "Loening" . . . . .