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US Patent: 20,942
Making Watches Watch Case Making
Patentee: Edwin Field (exact or similar names) - Providence, Providence County, RI USPTO Classifications: 72/137, 72/701 Tool Categories: specialty machines : watchmaking machinery metalworking machines : sheet metal : sheet metal forming rolls Assignees: None Manufacturer: Not known to have been produced Witnesses: Isaac A. Brownell Henry Martin	Patent Dates: Granted: Jul. 20, 1858 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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