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US Patent: 136,886
Improvement in dummy or traction engines
Patentee: Aretus A. Wilder (exact or similar names) - Detroit, MI USPTO Classifications: 60/668 Tool Categories: Assignees: Aretus A. Wilder - Detroit, MI Arthur Rankin - Detroit, MI Manufacturer: Not known to have been produced Witnesses: H. S. Sprague H. F. Eberts	Patent Dates: Granted: Mar. 18, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for A. A. Wilder

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