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US Patent: 427,477
Machine for Grinding Pearls Ivory Etc
Patentee: Joseph H. Lawles (exact or similar names) - Brooklyn, Kings County, NY USPTO Classifications: 451/273 Tool Categories: specialty machines : material grinding machines trade specific : cutler Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 23, 1888 Granted: May 06, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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