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US Patent: 365,744
Drilling-machine
Patentee: John Worth Heyer (exact or similar names) - Hartford, CT USPTO Classifications: 144/285, 175/393, 178/69G, 29/DIG.066, 29/DIG.079, 29/DIG.101, 408/57, 82/132, 82/901 Tool Categories: Assignees: Pratt & Whitney Co. - Hartford, CT Manufacturer: Not known to have been produced Witnesses: Charles L. Burdett H. R. Williams	Patent Dates: Applied: Jan. 13, 1887 Granted: Jun. 28, 1887 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Pratt & Whitney Co.

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