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CA Patent: CA-21,981
Screw plate
Patentee: George L. Reece (exact or similar names) - Derby Line, VT USPTO Classifications: Tool Categories: industrial tools : taps and dies metalworking tools : taps and dies Assignees: H. Stewart Haskell - Derby Line, VT Frederick D. Butterfield - Derby Line, VT Manufacturer: Butterfield & Co. - Derby Line, VT Witnesses: Unknown	Patent Dates: Granted: Jul. 03, 1885 Patent Pictures: CIPO Data Report data errors or omissions to steward Jeff Joslin "Vintage Machinery" entry for Butterfield & Co.
Description: This is the Canadian equivalent of US patent 320,693.

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