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CA Patent: CA-4,349
Method of locking and unlocking nuts
Patentees: Charles Levey (exact or similar names) - Toronto, ON Canada William Myles (exact or similar names) - Toronto, ON Canada USPTO Classifications: Tool Categories: Assignees: None Manufacturer: Chas. Levey & Co. - Toronto, ON Canada Witnesses: Theodore King James Nib	Patent Dates: Applied: Jan. 26, 1875 Granted: Feb. 02, 1875 Patent Pictures: CIPO Data Espacenet patent Report data errors or omissions to steward Jeff Joslin "Vintage Machinery" entry for Chas. Levey & Co.

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