his work. He made his design drawings on metal plates to prevent distortion.

Burroughs filed his first patent for the invention of a "calculating machine" in 1885. It was designed to ease the monotony of clerical arithmetic. By 1890, they were well known in the banking industry, and adoption spread.

Company founder

Burroughs founded the American Arithmometer Company in 1886. After his death, in 1904 partner John Boyer renamed

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