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US Patent: 372,730
Centering Device
Patentee: Harlan P. Wellman (exact or similar names) - Catlettsburg, Boyd County, KY USPTO Classifications: 408/105 Tool Categories: metalworking machines : drilling and boring : center drilling machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 04, 1887 Granted: Nov. 08, 1887 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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