Federal Manufacturing & Engineering Corporation
fl. 1940s - 1960s
Federal Manufacturing and Engineering Corp. was a company based in Brooklyn and their original name was Federal Stamping and Engineering Corp. They are mostly known for manufacturing photographic enlargers, tape recorders, still and motion picture projectors, sound signal and pulse generators and heterodyne frequency meters.
Mauk, James F. "Industrial Research Laboratories of the United States," pg. 183, National Academies, 1956, http://books.google.com/books?id=6DgrAAAAYAAJ&pg=PA183&lpg=PA183 (accessed 09/22/2014)
"Federal," Camerapedia, http://camera-wiki.org/wiki/Federal (accessed 09/22/2014) [unvetted]