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US Patent: 1,251,809
Adjustable Triangle & Gear Tooth Plotter
Patentee:
John Nash - Dryden, OR

USPTO Classifications:
33/499

Tool Categories:
layout tools : special purpose gauges
layout tools : squares

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. R. Tomlin
R. L. Parker
J. H. Thomas
William Auslund

Patent Dates:
Applied: Mar. 01, 1917
Granted: Jan. 01, 1918

Patent Pictures:
USPTO pdf tiff
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