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US Patent: 525,573
Bit shank and chuck
Patentee: Moses L. Andrew (exact or similar names) - Delhi, OH USPTO Classifications: 279/81 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Charles Barnes S. R. Smitt	Patent Dates: Applied: Feb. 25, 1892 Granted: Sep. 04, 1894 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for M. L. Andrew & Co.

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