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CA Patent: CA-6,521
Emery-wheel dresser
Patentee: Joseph D. Huntington (exact or similar names) - Chicago, IL USPTO Classifications: Tool Categories: industrial tools : grinding wheels : grinder dressers metalworking machines : grinders : grinder dressers Assignees: None Manufacturer: C. E. Roberts & Co. - Chicago, IL Chicago Screw Co. - Chicago, IL Witnesses: Unknown	Patent Dates: Granted: Sep. 07, 1876 Patent Pictures: CIPO Data Report data errors or omissions to steward Jeff Joslin
Description: This is the Canadian equivalent of US patent 168,643.

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