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US Patent: 344,919
Grinding machinery Improved planer-knife grinder
Patentee: Philip A. Otis (exact or similar names) - Leeds, MA USPTO Classifications: 279/42, 451/548 Tool Categories: metalworking machines : grinders : tool grinders Assignees: Northampton Emery Wheel Co. - Leeds, MA Manufacturer: Northampton Emery Wheel Co. - Leeds, MA Witnesses: A. C. Tanner H. R. Williams	Patent Dates: Applied: Dec. 24, 1885 Granted: Jul. 06, 1886 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Northampton Emery Wheel Co.
Description: Improvements to patent 182,284.

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