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US Patent: 639,293
Sight Feed Oil Cup
Patentee: Henry Ritter (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 137/625.4, 184/82, 184/86, 251/29 Tool Categories: industrial tools : tool lubricators : oil cups Assignees: Lunkenheimer Co. - Cincinnati, Hamilton County, OH Manufacturer: Lunkenheimer Co. - Cincinnati, Hamilton County, OH Witnesses: D. T. Williams William H. Muench Martin H. Olsen Leonora Wiseman	Patent Dates: Applied: Aug. 16, 1897 Granted: Dec. 19, 1899 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Lunkenheimer Co.

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