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US Patent: 720,511
Drum-armature
Patentee: Herbert A. Balcome (exact or similar names) - Jamaica Plain, MA USPTO Classifications: 310/208 Tool Categories: electrical devices : electric motors Assignees: B. F. Sturtevant Co. - Boston, MA Manufacturer: Not known to have been produced Witnesses: Fred O. Fish Horace Van Everen	Patent Dates: Applied: Apr. 23, 1902 Granted: Feb. 10, 1903 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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