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US Patent: 942,185
Double back gearing
Patentee: John C. Pflanzer (exact or similar names) - Cincinnati, OH USPTO Classifications: 74/333 Tool Categories: metalworking machines : metal lathes Assignees: Champion Tool Works Co. - Cincinnati, OH Manufacturer: Champion Tool Works Co. - Cincinnati, OH Witnesses: H. W. Kreuzburg William Donaldson	Patent Dates: Granted: Dec. 07, 1909 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Champion Tool Works Co.

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