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Standard Adding Machine Company

Defunct manufacturing companies based in MissouriIndustrial buildings and structures on the National Register of Historic Places in MissouriMechanical calculator companiesNational Register of Historic Places in St. Louis
Aquinas Institute of Theology
Aquinas Institute of Theology

Standard Adding Machine Company was founded in the early 1890s (first records are from 1892) in Illinois and was the first company to (successfully) release a 10-key adding machine. The machine was a breakthrough for its time because it dramatically modernized computing. Earlier key driven adding machines, like the comptometer, featured eight or more columns of nine keys, which made them cumbersome and costly and their operators prone to mistakes. The 10 keys were set on a single row. The invention won an international grand prize during the 1904 World's Fair and was heralded as a "modern life preserver" in an office journal.

Excerpt from the Wikipedia article Standard Adding Machine Company (License: CC BY-SA 3.0, Authors, Images).

Standard Adding Machine Company
Laclede Avenue, St. Louis

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N 38.635833333333 ° E -90.238055555556 °
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Beracha Hall

Laclede Avenue 3721
63108 St. Louis
Missouri, United States
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Aquinas Institute of Theology
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