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US Patent: 1,752,112
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Patentees: Charles D. Severance (exact or similar names) - Greenfield, MA Raymond O. Stetson (exact or similar names) - Greenfield, MA USPTO Classifications: 33/381, 33/389 Tool Categories: layout tools : levels Assignees: Goodell-Pratt Co. - Greenfield, MA Manufacturer: Goodell-Pratt Co. - Greenfield, MA Witnesses: Unknown	Patent Dates: Applied: Jun. 26, 1928 Granted: Mar. 25, 1930 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Goodell-Pratt Co.

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