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US Patent: 641,173
Micrometer Calipers
Patentee: John P. B. Wells (exact or similar names) - Athol, MA USPTO Classifications: 33/817 Tool Categories: metalworking tools : machinist tools : measuring tools : micrometers Assignees: None Manufacturer: Not known to have been produced Witnesses: Robert Everett F. B. Keefer Edgar V. Wilson William G. Lord	Patent Dates: Applied: Mar. 24, 1899 Granted: Jan. 09, 1900 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: James L. Norris - patent attorney

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