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US Patent: 188,773
Improvement in machines for drilling the shanks of rivets
Patentee: Mellen Bray (exact or similar names) - Newton, MA USPTO Classifications: 408/139, 408/61, 408/71 Tool Categories: specialty machines : rivet making machines Assignees: None Manufacturer: Not known to have been produced Witnesses: E. A. Hemmenway N. C. Lombard	Patent Dates: Applied: Oct. 02, 1876 Granted: Mar. 27, 1877 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: Improvements to patent 166,963.

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