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US Patent: 666,156
Steam hydraulic elevator
Patentee: Ellis B. Ridgway (exact or similar names) - Coatesville, PA USPTO Classifications: 137/428, 137/596, 187/253, 91/445, 91/4A Tool Categories: specialty machines : elevators and lifts Assignees: None Manufacturer: Craig Ridgway & Son Co. - Coatesville, PA Witnesses: William H. Ridgway J. W. Wingard	Patent Dates: Applied: Oct. 27, 1900 Granted: Jan. 15, 1901 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Craig Ridgway & Son Co.

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