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US Patent: 36,312
Plane Angulometer
Patentee:
Eli Thayer - Worcester, MA

USPTO Classifications:
33/402

Tool Categories:
layout tools : levels : inclinometers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John S. Hollingshead
D. Rowland

Patent Dates:
Granted: Aug. 26, 1862

Patent Pictures:
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