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US Patent: 1,625,401
Cylinder Gauge
Patentee: Robert J. O. Simpson (exact or similar names) - Athol, Worcester County, MA USPTO Classifications: 33/544.5 Tool Categories: metalworking tools : machinist tools : measuring tools : cylinder gages Assignees: L. S. Starrett Co. - Athol, Worcester County, MA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 08, 1923 Granted: Apr. 19, 1927 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for L. S. Starrett Co. Wikipedia entry for the L. S. Starrett Company The Starrett Story History of the L. S. Starrett Co.

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