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US Patent: 945,526
Grinding-wheel
Patentee: Gilbert Hart (exact or similar names) - Detroit, MI USPTO Classifications: 451/543 Tool Categories: industrial tools : grinding wheels metalworking machines : grinders : sharpening machines : grinding wheels Assignees: None Manufacturer: Hart Emery Wheel Co. - Detroit, MI Hart Emery Wheel Co., Ltd. - Hamilton, ON Canada Witnesses: Thomas V. Dutton Michael H. Dempsey	Patent Dates: Applied: Jun. 01, 1909 Granted: Jan. 04, 1910 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Hart Emery Wheel Co.
Description: Improvements to patents 779,848 and 825,460, to more securely lock the wheel segments together to reduce the risk of wheel bursting.

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