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US Patent: 2,480,237
Optical Device for Accurate Reading of Annular Scales
Patentees: Charles John Godfrey (exact or similar names) - London, England Victor William Henry Towns (exact or similar names) - London, England USPTO Classifications: 356/139 Tool Categories: metalworking tools : machinist tools : measuring tools : optical measuring gauges Assignees: Hilger & Watts, Ltd. - London, England Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 07, 1947 Granted: Aug. 30, 1949 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Hilger & Watts

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