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US Patent: 1,289,924
Knob Grinding Machine
Patentee:
Andrew J. Sanford (exact or similar names) - Newark, OH

USPTO Classifications:
279/151, 451/227, 451/385, 451/398, 451/57, 451/913

Tool Categories:

Assignees:
A. J. Heisey & Co. - Newark, OH

Manufacturer:
Not known to have been produced

Witnesses:
H. C. Mueller
J. P. Goodwin

Patent Dates:
Applied: Sep. 12, 1914
Granted: Dec. 31, 1918

Patent Pictures:
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