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US Patent: 493,471
Drilling Machine
Patentee: Alfred Betts (exact or similar names) - Wilmington, DE USPTO Classifications: 269/60, 451/411 Tool Categories: metalworking machines : drilling and boring : horizontal boring mills Assignees: Betts Machine Co. - Wilmington, DE Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 23, 1892 Granted: Mar. 14, 1893 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Betts Machine Co.

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