Davidson, Shelby
1868-1931 · Contribution: 1908-1911
Industrial & Mechanical
Rewind device for adding machines; automatic fee-calculation device for postal clerks
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Quick facts
- Born
- 1868-1931
- Active since
- 1908-1911
- Category
- Industrial & Mechanical
Impact on the world
Davidson mechanized tedious government accounting work, dramatically cutting the time and paper needed to audit federal records.
An alternative history
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Sources
- Primary recordOpen
Google Patents (US 884,721)
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