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US Patent: 2,566,685
Micrometer Calipers
Patentee: Francis Tvrzicky (exact or similar names) - Chicago, IL USPTO Classifications: 188/83, 33/802, 74/30 Tool Categories: metalworking tools : machinist tools : measuring tools : micrometers Assignees: None Manufacturer: Not known to have been produced Witnesses: none listed	Patent Dates: Applied: Jan. 20, 1945 Granted: Sep. 04, 1951 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: John F. Brezina - patent attorney

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