In 1936, on the centenary of the United States Patent Office, he was honored as one of the country’s 10 greatest living inventors.
One of their contracts was with Bundy Manufacturing Company who made time clocks used to track hours worked by industrial workers.
He took a position at the Computing-Tabulating-Recording Company (later known as IBM) in 1917 as supervising engineer of the division that developed time recording machines.
Bryce invented one of the first electromechanical multipliers using relays for this application, and became IBM's chief engineer.
[2] He adapted the 603 to become the arithmetic logic unit in the Selective Sequence Electronic Calculator (SSEC).