National Museum of American History
Computing Scale
Phinney, William H. · 1870
Patent model for William H. Phinney, “Improvement in Scales for Showing Weight and Price,” U.S. Patent 106,869 (Aug. 30, 1870). Although the invention was not commercially successful, Phinney would later be hailed as the beginning of an important industry. Phinney lived in Pawtucket, Rhode Island,
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