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US Patent: 77,130
Improvement in try-squares
Patentee:
Edwin J. Toof - Fort Madison, IA

USPTO Classifications:
33/32.2

Tool Categories:
layout tools : squares : try squares

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. C. Beals
W. E. Marrs

Patent Dates:
Granted: Apr. 21, 1868

Patent Pictures:
USPTO pdf tiff
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