Originally Posted by
mickey85
It seems that during WWII, there is quite a few manufacturers of various things that moved to arms manufacture - case in point - Oldsmobile was contracted by the US government to build airplane guns - specifically M2-M4 37mm wing-mount cannons.
case in point:
http://www.youtube.com/watch?v=L5NxfDS94YA
And International Harvester made M1 Garands And National postal Meter made M1 Carbines
damn someone beat me to it