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US Patent: 1,915,942
Illuminated Gauge
Patentee: Joseph W. Motherwell (exact or similar names) - Melrose, Middlesex County, MA USPTO Classifications: 362/23.01, 362/23.17 Tool Categories: gauges : gauge illuminating apparatus Assignees: Ashton Valve Co. - Cambridge, Middlesex County, MA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 03, 1930 Granted: Jun. 27, 1933 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Ashton Valve Co.

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