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US Patent: 152,323
Improvement in machines for grinding carpenters' squares
Patentee:
Charles S. Bement - New Haven, CT

USPTO Classifications:
451/213, 451/364

Tool Categories:
tool making

Assignees:
Sargent & Co. - New Haven, CT

Manufacturer:
Not known to have been produced

Witnesses:
J. H. Shumway
A. J. Tibbits

Patent Dates:
Applied: Jan. 21, 1874
Granted: Jun. 23, 1874

Patent Pictures:
USPTO pdf tiff
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