Think You're Right, Pat
I'm pretty sure the 1972 date is right for the small appliances, they sold the lines to Hamilton Beach/Scoville. However, I believe they stopped making vacuums even earlier, perhaps 1970?
And I do know for a fact that the 1974 date is right for the major appliances, which were sold to White Consolidated, and I remember seeing the changes at the Mansfield, OH plant during that time. The name was changed to Mansfield Products Co., Division of White Consolidated, and the appliances themselves were renamed "White-Westinghouse." By the time White took over, washers, dryers, and ranges were the only items still made at the Mansfield plant, where I worked on the dryer floor in 1977.
Jeff