American Cuckoo Clock Company
There was also the "Cuckoo Clock Mfg. Co." I think they were a distributer of clocks and had their name put on them, in about the 1950s to 1970s. Kieninger made some of the clocks for them. They sold cuckoo clocks as well as other types. This is the company I thought you were talking about at first, but I wonder if maybe they changed their name in the 1950s from American Cuckoo Clock to Cuckoo Clock Mfg. Co.?
So many clocks, so little time.
The International 400 Day Clock Chapter 168, Global Horology Chapter 192.