Ko te Grumman Aircraft Engineering Corporation, i muri mai ko Grumman Aerospace Corporation, he kaihanga matua o te rautau 20 o nga rererangi hoia me te taangata. I whakatuhia i te Tihema 6, 1929, na Leroy Grumman me nga hoa, i whakakotahihia i te 1994 me Northrop Corporation ki te hanga Northrop Grumman. Patai: He aha te ingoa o te umanga miihini rererangi a Grumman?
Grumman Aerospace Corporation (Te Rōpū Aero ā-Rangi o Grumman)