The name “Pacemaker” was registered by Diebold as a trademark in 1969 in which the first-use date was stated as May 6, 1968. The trademark has since expired.
I could not find a corresponding trademark for Pacesetter.
“Century” was a Mosler line, the trademark states first-use in late 1953. The last-listed owner is Diebold and the trademark is still live. Interesting that Diebold would keep a Mosler name alive but not their own!