It was founded in 1937 by Lewis W. Imm to build and operate theater equipment, and acquired by General Precision in 1941.
Later, Librascope became a manufacturer of early digital computers sold in both the business and defense markets.
It hired Stan Frankel, a Manhattan Project veteran and early ENIAC programmer, to design the LGP-30 desk computer in 1956.
The company specialized in fire control systems for torpedoes, though they continued to work on a variety of other smaller military contracts through the 1970s.
After Singer was taken over by corporate raider Paul Bilzerian, the company was sold to Loral Space & Communications in 1992.