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US Patent: 421,417
Three Spindle Boring Machine
Patentee: Jacob Herbert Mickler (exact or similar names) - Preston, Waterloo County, ON Canada USPTO Classifications: 74/721 Tool Categories: metalworking machines : drilling and boring : horizontal boring mills Assignees: Jacob Herbert Mickler - Preston, Waterloo County, ON Canada William Stahlschmidt - Preston, Waterloo County, ON Canada Jacob Emil Klotz - Preston, Waterloo County, ON Canada Manufacturer: Not known to have been produced Witnesses: J. Edward Maylee W. G. McMillan D. E. Turner George Fink	Patent Dates: Applied: Aug. 08, 1889 Granted: Feb. 18, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
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