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US Patent: 349,840
Drafting Compass
Patentee: Frederick N. Gardner (exact or similar names) - Hartford, CT USPTO Classifications: 33/27.033 Tool Categories: layout tools : compasses Assignees: Pratt & Whitney Co. - Hartford, CT Manufacturer: Pratt & Whitney Co. - Hartford, CT Hartford Tool Co. - Hartford, Hartford County, CT Witnesses: Edwin F. Dimock Charles L. Burdett	Patent Dates: Applied: Mar. 24, 1884 Granted: Sep. 28, 1886 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Pratt, Whitney & Co. American Precision Museum
Description: Frederick N. Gardner was president of Hartford Tool Co., which was bought by Pratt & Whitney around 1886.

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