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US Patent: 642,178
Clamping device
Patentees: Harry S. Spencer (exact or similar names) - Bond Hill, OH John R. Thomas (exact or similar names) - Cincinnati, OH USPTO Classifications: 74/531 Tool Categories: work holding Assignees: None Manufacturer: J. A. Fay & Egan Co. - Cincinnati, OH Witnesses: Philip W. Tozzer Parke S. Johnson	Patent Dates: Applied: Aug. 21, 1899 Granted: Jan. 30, 1900 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for J. A. Fay & Egan Co.

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