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US Patent: 1,061,129
Screw-plate
Patentee: Charles C. Russell (exact or similar names) - Greenfield, MA USPTO Classifications: 408/162, 408/182 Tool Categories: metalworking tools : tap and die holders Assignees: None Manufacturer: Greenfield Tap & Die Corp. - Greenfield, MA Russell Mfg. Co. - Greenfield, MA Witnesses: John D. Bouker Marion E. Handforth	Patent Dates: Applied: Jun. 21, 1912 Granted: May 06, 1913 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Greenfield Tap & Die Corp.
Description: At about the time this patent was issued the inventor co-founded Russell Mfg. Co. in Greenfield. He was treasurer, and Whitman Russell was president.

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