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US Patent: 632,849
Trolley Wheel
Patentees: Ed M. Putnam (exact or similar names) - Haverhill, Essex County, MA William Sellers (exact or similar names) - Haverhill, Essex County, MA USPTO Classifications: 384/391 Tool Categories: transportation : railroads : streetcars and trolleys Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 25, 1899 Granted: Sep. 12, 1899 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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