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US Patent: 431,110
File for drawings, plans, and heavy documents
Patentee: Charles H. Driver (exact or similar names) - Racine, WI USPTO Classifications: 211/4, 211/57.1, 402/47 Tool Categories: trade specific : office worker Assignees: None Manufacturer: C. H. Driver Mfg. Co. - Racine, WI Witnesses: William Klug H. G. Underwood	Patent Dates: Applied: Jan. 26, 1889 Granted: Jul. 01, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for C. H. Driver Mfg. Co.

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