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US Patent: 344,919
Grinding machinery
Improved planer-knife grinder
Patentee:
Philip A. Otis - 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 pdf tiff
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"Vintage Machinery" entry for Northampton Emery Wheel Co.
Description:
Improvements to patent 182,284.

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