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US Patent: 243,770
Holder for Grinding Tools
Patentees: Frederick N. Gardner (exact or similar names) - Hartford, Hartford County, CT James E. Woodbridge (exact or similar names) - Hartford, Hartford County, CT USPTO Classifications: 451/369 Tool Categories: metalworking machines : grinders : grinding attachments Assignees: None Manufacturer: Hartford Tool Co. - Hartford, Hartford County, CT Witnesses: John P. Healy David G. Gordon W. C. McArthur Jason H. Lambert	Patent Dates: Applied: Dec. 27, 1880 Granted: Jul. 05, 1881 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: This tool holder was sold by the Pratt & Whitney Co.in their 1893 catalogue. Please see also patent #256,668.

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