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US Patent: 620,337
Micrometer Gage
Patentee: George J. Lavigne (exact or similar names) - New Haven, CT USPTO Classifications: 33/830 Tool Categories: metalworking tools : machinist tools : measuring tools : micrometers Assignees: George J. Lavigne - New Haven, CT Alfred Chadwick - New Haven, CT Manufacturer: Not known to have been produced Witnesses: Frederick C. Earle Lillian D. Kelsey J. H. Shumway	Patent Dates: Applied: Apr. 21, 1898 Granted: Feb. 28, 1899 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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