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US Patent: 651,342
Commutator-Truing Device
Patentee: Edgar D. Carr (exact or similar names) - Akron, Summit County, OH USPTO Classifications: 29/27B, 451/418, 82/128, 82/137 Tool Categories: specialty tools : commutator truing tools Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 07, 1900 Granted: Jun. 12, 1900 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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