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US Patent: 8,929
Machinery for grinding or polishing saw-blades, &c.
Patentee:
William Southwell - Kensington, PA

USPTO Classifications:
451/200

Tool Categories:
tool making

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edward Evans
James Eccles

Patent Dates:
Granted: May 04, 1852

Patent Pictures:
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Description:
According to the 1873 "Subject-matter index of patents for inventions issued by the United States Patent Office", this patent was granted an extension.

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