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US Patent: 489,413
Folding Try Square
Patentee:
James Eugene Duncan (exact or similar names) - Centralia, WI

USPTO Classifications:
33/498

Tool Categories:
layout tools : squares : try squares
layout tools : bevels

Assignees:
James Eugene Duncan - Centralia, WI
Joseph Henry Welch - Minneapolis, MN

Manufacturer:
Not known to have been produced

Witnesses:
J. W. Cantwell
F. E. Kellner

Patent Dates:
Applied: May 18, 1891
Granted: Jan. 03, 1893

Patent Pictures:
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