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US Patent: RE2,405
Improvement in railroad frogs
Patentee: Enos G. Allen (exact or similar names) - Boston, MA USPTO Classifications: 246/471 Tool Categories: transportation : railroads : track and switches Assignees: None Manufacturer: Not known to have been produced Witnesses: P. T. Dodge F. F Kirby	Patent Dates: Granted: Dec. 04, 1866 Reissue Information: Reissue of 58,196 (Sep. 25, 1866) Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Enos G. Allen

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