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US Patent: 53,216
Improvement in machines for boring hubs
Patentee: L. A. Dole (exact or similar names) - Salem, OH USPTO Classifications: 144/100, 408/175 Tool Categories: trade specific : wheelwright metalworking machines : drilling and boring Assignees: A. R. Silver - Salem, OH L. A. Dole - Salem, OH Manufacturer: Dole, Silver & Deming - Salem, OH Dole & Silver - Salem, OH Witnesses: Unknown	Patent Dates: Granted: Mar. 13, 1866 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Dole, Silver & Deming Vintage Machinery entry for Dole & Silver

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