Miratel Inc.
Miratel stands for Minnesota Radio & Television, which was a company started by Setchell Carlson employees. The CR117 CB was one of their 1st products.
Not having success in the CB market, Miratel went on to produce other products most  notably large monochrome TV monitors used for flight information display (FIDS) screens at airports. Somewhere in the world, Miratel FIDS monitors are probably still in use.