The Comptometer was the first commercially successful key-driven mechanical calculator, patented in the United States by Dorr Felt in 1887. A key-driven...

mechanical calculators from 1901. In 1961, a comptometer type machine, the Anita Mk VII from Sumlock comptometer Ltd., became the first desktop mechanical...

Florida Tech Easy Instructions for Operation the Controlled Key Comptometer, Comptometer Division, Felt and Tarrant Mfg. Co., Chicago, 1917, p. 12 Carl...

not gain widespread use until Dorr E. Felt started manufacturing his comptometer (1887) and Burroughs started the commercialization of differently conceived...

built by the Bell Punch Co. in Britain, and marketed through its Sumlock Comptometer division, they used vacuum tubes and cold-cathode switching tubes in...

fiberglass and other modern materials. Fred Bear sold the company to Victor Comptometer in 1968, but remained the president of Bear Archery. The company was...

larger facilities in Dyersville, Iowa 1967 - Ertl is acquired by Victor Comptometer Corporation 1971 - Ertl acquires Carter Tru-Scale 1973 - Ertl begins...

the only other competitor in true commercial production, had sold 100 comptometers. It wasn't until 1902 that the familiar push-button user interface was...

calculator in the world, ten years later, by 1900, four machines, the comptometer and Burroughs' adding machine in the USA, Odhner's Arithmometer in Russia...

"smaller than a typewriter". The original prototype was built by Victor Comptometer using vacuum tubes in 1963. When this was successful, the company sought...

American inventor and industrialist who was known for having invented the Comptometer, an early computing device, and the Comptograph, the first printing adding...

In 1961, Cass Hough, the president of Daisy Heddon division of Victor Comptometer, purchased the design of a new firearm system. The new system was developed...

the Tesla Model 3 Honda e, an electric car by Honda Comptometer Model E, a version of the Comptometer mechanical calculator Vickers Model E machine gun...

to help support her family. She lost her first job (as a typist and comptometer operator) after taking her guitar to work and playing it during tea-breaks...

era coat buttons; a collection of Montie Montana memorabilia; a 1915 comptometer; and a 2005 Suzuki GSX-R 1300 Hayabusa motorcycle. Upset over dwindling...

early electronic desktop calculators, including the first: the Sumlock-Comptometer ANITA Mk VII of 1961 and even the first electronic telephone switchboards...

Belgium. Oldham's Australian-born mother, Celia Oldham, was a nurse and comptometer operator. Oldham attended the Aylesbury School for Boys, Cokethorpe School...

Edward A. Everett, Wisconsin State Representative Dorr Felt, inventor of comptometer Edwin G. Fifield, Wisconsin State Representative Bill Flannigan, NFL...

the Comptometer Corporation, which produced calculating machines and a telecommunication device called the Electrowriter. In 1965 Victor Comptometer Corporation...

Victor Technology, known earlier as Victor Adding Machine Co. and Victor Comptometer, an American calculator company Victor (sports company), a Taiwanese...

Otherwise, pressing a 5..9 key would require either a longer stroke (as in a Comptometer) or excessive force combined with a gently sloping cam surface. – Curt...

state park that is undergoing restoration. Built by the inventor of the comptometer in 1928, the Felt's summer home was sold to the St. Augustine Seminary...

designs were completed in Babbage's lifetime. The Arithmometer and the Comptometer are mechanical computers that are precursors to modern digital computers...

Buehler Library, named in honor of the former president of the Victor Comptometer Corporation and board of trustees member, is home to over 237,000 volumes...

23 custom integrated circuits for an electronic calculator for Victor Comptometer proved to be too ambitious given the reliability of PMOS circuits at...

such as the abacus, log tables, slide rule, stepped reckoner, or the comptometer, but the most commonly used device for everyday commerce was the ready...

method for subtractions. Adding machine Stepped reckoner Arithmometer Comptometer Difference engine Analytical engine Z1 (computer) Œuvres de Pascal in...

That same year, the company entered an agreement to convert a Victor Comptometer tube-based electronic calculator to all-IC form, the Victor 3900, with...

and AFL football defensive back Dorr Felt (1862–1930), inventor of the Comptometer, an early computing device Edward P. Felt (1959–2001), a victim of the...

become the Intel 4004, and on their sales trips they visited Victor Comptometer in Chicago looking for potential customers. Victor had introduced the...