Whirlpool and Servel:
Servel was one of Whirlpool's early acquisitions - something that would become a habit with Whirlpool. Servel had been very popular in the '40s and early '50s, but by the later part of the '50s, they were in trouble, because frost-free was the new rage, and gas refrigeration technology couldn't yet deliver that benefit. There was also a problem with dated styling; Servel kept the rounded styling of the early '50s even when Frigidaire's Sheer Look changed everything.
The reason for the Whirlpool acquisition was Servel's icemaker technology; the Servel unit became the Whirlpool icemaker used by so many brands to this day, with some modifications and updates; if you look at old Servel ads touting the icemaker unit, it's instantly recognisable as the Whirlpool icemaker. Servel's last year was 1957.