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US Patent: 31,987
Machinist's Square
Patentee:
Richard B. Light - Dunkirk, Chautauqua County, NY

USPTO Classifications:
33/342, 33/369, 33/419

Tool Categories:
layout tools : squares
layout tools : protractors
layout tools : scribes
layout tools : levels : machinist levels

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Hanson A. Risley
Thomas Flesher

Patent Dates:
Granted: Apr. 09, 1861

Patent Pictures:
USPTO pdf tiff
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