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US Patent: 176,116
Improvement in machines for boring pipe-stems
Patentee: McClintock Young (exact or similar names) - Frederick, MD USPTO Classifications: 144/93.1, 408/107 Tool Categories: metalworking machines : drilling and boring woodworking machines : specialty woodworking machines woodworking machines : wood drilling and boring Assignees: None Manufacturer: Not known to have been produced Witnesses: James J. English John A. Simmons	Patent Dates: Applied: Jun. 19, 1875 Granted: Apr. 11, 1876 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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