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US Patent: 51,522
Improvement in pumps
Patentee: C. A. Stillman (exact or similar names) - Westerly, RI USPTO Classifications: 137/512, 417/565 Tool Categories: propulsion and energy : steam apparatus : stationary boilers : steam pumps propulsion and energy : steam apparatus : steam pumps Assignees: C. B. Cottrell - Westerly, RI Nathan Babcock - Westerly, RI Manufacturer: Cottrell & Babcock - Westerly, RI Witnesses: M. M. Livingston J. P. Hall	Patent Dates: Granted: Dec. 12, 1865 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Cottrell & Babcock

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