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US Patent: 315,388
Plotter For Tinners' Use
Patentee:
Christian D. Cowgill (exact or similar names) - Terre Haute, IN

USPTO Classifications:
33/426

Tool Categories:
layout tools : squares
layout tools : bevels

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Baskin E. Rhoads
Elmer F. Williams
Fred G. Dietrich
Wm. Bagger

Patent Dates:
Applied: Dec. 10, 1884
Granted: Apr. 07, 1885

Patent Pictures:
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Report data errors or omissions to steward Ralph Brendler
Description:
This is a specialized square and bevel gage for use by tinsmiths. It can easily figure and mark the angles for any regular polygon.

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