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US Patent: 20,356
Protractor
Patentee:
Josiah Lyman - Lenox, MA

USPTO Classifications:
33/468

Tool Categories:
layout tools : protractors

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Henry W. Taft
Geo I. Tuckers

Patent Dates:
Applied: May 25, 1858
Granted: May 25, 1858

Patent Pictures: [ 1 | 2 ]
USPTO pdf tiff
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Description:
One of these appeared in a Martin J. Donnelly auction

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