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US Patent: 143,292
Crank-Connection for Steam Engines
Patentees: John H. McGowan (exact or similar names) - Cincinnati, OH David B. Caldwell (exact or similar names) - Cincinnati, OH USPTO Classifications: 123/195HC, 123/197.1, 74/40, 91/172, 92/134 Tool Categories: propulsion and energy : steam engines : steam engine crank rods Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 02, 1873 Granted: Sep. 30, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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