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US Patent: 194,869
Improvement in mortising-machines Chain mortising machine
Patentee: William W. Green, Jr. (exact or similar names) - Chicago, IL USPTO Classifications: 144/72, 144/84 Tool Categories: woodworking machines : joint making machines : mortising machines woodworking machines : wood drilling and boring : mortising machines Assignees: J. M. Shields - Chicago, IL E. N. Niegelsen - Chicago, IL William W. Green, Jr. - Chicago, IL Manufacturer: Not known to have been produced Witnesses: Peter Ray John H. Mason	Patent Dates: Applied: Feb. 26, 1877 Granted: Sep. 04, 1877 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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