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US Patent: 897,437
Calipers
Patentee: William H. Watson (exact or similar names) - Lakeport, Belknap County, NH USPTO Classifications: 33/810 Tool Categories: metalworking tools : machinist tools : measuring tools : depth micrometers Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 19, 1907 Granted: Sep. 01, 1908 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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