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US Patent: 673,307
Micrometer Surface Gage
Patentee: John Wahlberg (exact or similar names) - New York, NY USPTO Classifications: 33/823 Tool Categories: metalworking tools : machinist tools : measuring tools : thickness gages metalworking tools : machinist tools : measuring tools : micrometers Assignees: None Manufacturer: Not known to have been produced Witnesses: L. Almquist C. Sedgwick Ernest Roch	Patent Dates: Applied: Sep. 29, 1900 Granted: Apr. 30, 1901 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: A. P. Thayer - patent attoney

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