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US Patent: 330,175
Pipe-cutter
Patentees: Frank Armstrong (exact or similar names) - Bridgeport, CT Nathaniel W. Vandegrift (exact or similar names) - Bridgeport, CT USPTO Classifications: 30/102, 81/134 Tool Categories: trade specific : plumber Assignees: Frank Armstrong - Bridgeport, CT Manufacturer: Armstrong Manufacturing Co. - Bridgeport, CT Witnesses: William S. Bull J. J. Amory	Patent Dates: Applied: Mar. 03, 1885 Granted: Nov. 10, 1885 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Armstrong Mfg. Co.
Description: An example of this pipe cutter was seen in a 2018 Martin J. Donnelly auction.

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