The machine made under these auspices is the Rogers-Bond Universal Comparator; Mr. Bond having been engaged in conjunction with Professor Rogers in its construction.
"Modern Machine-Shop Practice, Volumes I and II"
Joshua Rose
The lieutenant put the retinal photos in the Comparator, took a good look, and nodded.
"Unwise Child"
Gordon Randall Garrett
James did, however, improve his technique of making galactic charts; and he and Garlock designed and built a high-speed Comparator.
"The Galaxy Primes"
Edward Elmer Smith