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US Patent: 477,911
Grinding Attachment for Lathes
Patentees: George A. Mueller (exact or similar names) - Cincinnati, Hamilton County, OH Oscar W. Mueller (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 451/180, 451/406, 451/436 Tool Categories: metalworking machines : metal lathes : metal lathe accessories and attachments Assignees: George A. Mueller - Cincinnati, Hamilton County, OH George A. Muenzenmaier - Cincinnati, Hamilton County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 01, 1892 Granted: Jun. 28, 1892 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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