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US Patent: 1,997,892
Duplicating Machine
Patentee: Edmund Leo Wall (exact or similar names) - Detroit, Wayne County, MI USPTO Classifications: 409/102, 91/37 Tool Categories: metalworking machines : milling machines : milling machine accessories Assignees: Rudolph W. Glasner - Chicago, Cook County, IL Manufacturer: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Witnesses: Unknown	Patent Dates: Applied: Apr. 12, 1934 Granted: Apr. 16, 1935 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Cincinnati Milling Machine Co.
Description: This patent number was seen on a Cincinnati Milling Machine Co. patent plate 4FV-101.

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