As a result he began working for the Austin company and Conover Engineering , supervising the conversion of Detroit 's factories for wartime production .
In the early 1940s Fisher tried to establish his own firm once again , but WWII had started .
As a result Fisher began working for the Austin company and Conover Engineering , supervising the conversion of Detroit 's factories for wartime production .
In the early 1940s Fisher tried to establish his own firm once again , but WWII had started .