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US Patent: 558,497
Drilling Machine
Patentee: Alfred W. Kinney (exact or similar names) - Hartford, Hartford County, CT USPTO Classifications: 408/48 Tool Categories: metalworking machines : drilling and boring : drill presses : multiple spindle drill presses Assignees: Auguste J. Oehring - Chicago, Cook County, IL Pratt & Whitney Co. - Hartford, Hartford County, CT Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 05, 1892 Granted: Apr. 21, 1896 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Pratt, Whitney & Co.

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