Sperry Remington

American company which goes back to the early mechanical calculators and forward to the first commercial computers. Sperry Remington is a
trade mark of Sperry Rand Corporation.
In the late 60's Sperry Remington introduced calculators. They developed the first models but soon after they did not developed the complete calculators themselves anymore but modified design and casing or even components form mainly Casio to fit their needs. Most of the Sperry Remington calculators are looking like rebranded Casio's.
During 1976 Sperry left out the calculator business and concentrated on their computer business.