. . . "IRVIN-GQ" . . . . . . . . . . . "Airborne Systems" . . "Irving Air Chute Company" . . "Irvin parachute" . . "Irvin Great Britain" . . . "Irvin Air Chute Company" . . "later US Govt paid transfer to Irving Air Chute Company" . "1932" . "GQ Parachute Company" . . . . "IRVIN-GQ" . . "1919" .