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US Patent: 2,193,939
Micrometer
Patentee: Walter E. Sanford (exact or similar names) - Alexandria, VA USPTO Classifications: 33/821, 33/827 Tool Categories: metalworking tools : machinist tools : measuring tools : micrometers Assignees: None Manufacturer: Not known to have been produced Witnesses: none listed	Patent Dates: Applied: Feb. 10, 1938 Granted: Mar. 19, 1940 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: John R. Tomlin - patent attorney

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