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US Patent: 608,243
Oil-hole cover or cap
Patentee: Frank D. Winkley (exact or similar names) - Madison, WI USPTO Classifications: 137/382, 184/93, 251/297, 251/304 Tool Categories: industrial machines : industrial machine mechanisms : industrial machine lubrication : oil or grease fittings Assignees: None Manufacturer: Not known to have been produced Witnesses: G. J. Corscot H. G. Nichols	Patent Dates: Applied: Sep. 13, 1897 Granted: Aug. 02, 1898 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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