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US Patent: 216,162
Improvement in ditching-machines
Patentee: Charles D. Edwards (exact or similar names) - Albert Lea, MN USPTO Classifications: 37/372 Tool Categories: construction machines Assignees: None Manufacturer: C. D. Edwards Mfg. Co. - Albert Lea, MN Witnesses: A. M. Tyrer Theodore Tyrer John Shylock	Patent Dates: Applied: Feb. 11, 1879 Granted: Jun. 03, 1879 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for C. D. Edwards Mfg. Co.

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