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XC Patent: XC-177
A new and improved method of laying down marine railways
Patentees: Thomas Dissett (exact or similar names) - Portsmouth Harbour, Kingston, ON Canada James Smith (exact or similar names) - Portsmouth Harbour, Kingston, ON Canada USPTO Classifications: Tool Categories: transportation : railroads : railroad cars and carriages Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Granted: May 16, 1842 Patent Pictures: Report data errors or omissions to steward Jeff Joslin

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