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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 Google Patents Report data errors or omissions

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