I believe the Estate range plant, which RCA Whirlpool did buy, was in Hamilton Ohio. Estate ranges were real tanks and the high end models offered lots of features for the time. We have an electric Estate range made before the RCA acquisition.
It's hard to think back to the time when these big factories were in this country and turning out all type of manufactured products, some good and some not so. Some were in neighborhoods of the cities. Railroad tracks used to run beside, behind or in between the buildings. Some had water towers with the corporate name or logo on them and some had big smoke stacks with the company name on them in tile work. In Atlanta, Georgia Baptist Hospital has/had a stack with its name on it.