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US Patent: 471,428
Combined Section Liner and Protractor
Patentee:
Lewis Miller (exact or similar names) - Oil City, Venango County, PA

USPTO Classifications:
33/450

Tool Categories:
layout tools : protractors
trade specific : draftsman

Assignees:
Lewis Miller - Oil City, Venango County, PA
Frank H. Taylor - Oil City, Venango County, PA
George H. Torrey - Oil City, Venango County, PA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Nov. 11, 1891
Granted: Mar. 22, 1892

Patent Pictures:
USPTO (New site tip)
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