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US Patent: 375,049
Bevel Protractor
Patentee:
Michael Coughlin (exact or similar names) - Philadelphia, PA

USPTO Classifications:
33/473

Tool Categories:
metalworking tools : machinist tools : measuring tools : protractors
layout tools : squares : bevel squares

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
R. M. Hunter
Andrew Zane, Jr.

Patent Dates:
Applied: Jun. 23, 1887
Granted: Dec. 20, 1887

Patent Pictures:
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