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US Patent: 1,743,134
Motor-driven machine
Patentees: Henry J. Kingsbury (exact or similar names) - Kalamazoo, MI William C. Hammond (exact or similar names) - Kalamazoo, MI USPTO Classifications: 310/56, 310/66, 451/294 Tool Categories: Assignees: Hill-Curtis Co. - Jamestown, NY Manufacturer: Curtis Machine Corp. - Jamestown, NY Witnesses: Unknown	Patent Dates: Applied: Nov. 11, 1926 Granted: Jan. 14, 1930 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Curtis Machines Corp.
Description: The machine is a grinder that uses filtered air to cool the motor.

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