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US Patent: 387,481
Protractor
Patentee:
Gustaf Almorth - Waltham, MA

USPTO Classifications:
235/103

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

Assignees:
Gustaf Almorth - Waltham, MA
John Stark - Waltham, MA

Manufacturer:
Not known to have been produced

Witnesses:
William H. Johnson
R. M. Stark

Patent Dates:
Applied: May 04, 1888
Granted: Aug. 07, 1888

Patent Pictures:
USPTO pdf tiff
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