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US Patent: 1,144,094
Water-circulation system for subways
Patentee: Wendell A. Barker (exact or similar names) - Chicago, IL USPTO Classifications: 137/236.1, 137/563 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: A. G. Latimer Samuel N. Pond	Patent Dates: Applied: Feb. 11, 1915 Granted: Jun. 22, 1915 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Thomas Elevator Co.

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