Conover to Westinghouse & APEX, too
In the later 1930s, Westinghouse bought Conover to get the dishwasher. The Westinghouse dishwasher shown at the 1939 World's Fair was the Conover design. What's sorta funny is that the Conover was a front opening dishwasher with roll out racks, like modern machines, but when production resumed after WWII, Westinghouse dishwashers were of the roll-out wash well style.
Another dishwasher factoid I found is that in 1949, Dish-A-Matic was purchased by APEX. From page 4 of the June 15th, 1949 issue of Electrical Merchandising:
The Apex Electrical Mfg. Co., Cleveland, has purchased all of the capital stock of Lake State Products, Inc., Jackson, Michigan, producers of the Dish-A-Matic electric dishwasher and the Cinderella portable clothes washer.
C.G. Frantz, president of Apex, said the acquisition of the Dish-A-Matic firm represented an initial investment of close to $500,000.
Mr. Frantz said the modern, efficient Lake State Products plant at Jackson will be kept in operation as a wholly owned subsidiary of Apex. The Lake State plant, he said, has a capacity of 50,000 automatic dishwashers per year and production will be geared to expected requirements as rapidly as possible.