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US Patent: 2,144,486
Locating Device
Patentee: Edmund M. Erb (exact or similar names) - West Hartford, Hartford County, CT USPTO Classifications: 269/67, 269/78, 279/5, 409/218, 409/222 Tool Categories: metalworking machines : milling machines : milling machine accessories Assignees: Hartford Special Machinery Co. - Hartford, Hartford County, CT Manufacturer: Hartford Special Machinery Co. - Hartford, Hartford County, CT Witnesses: none listed	Patent Dates: Applied: Apr. 28, 1936 Granted: Jan. 17, 1939 Patent Pictures: [ 1 | 2 | 3 | 4 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Hartford Special Machinery Co.
Description: Also patented in Great Britain, patent #GB-501631.

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