US Patent: 1,752,112 - Spirit level


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US Patent: 1,752,112

Spirit level

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:

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Vintage Machinery entry for Goodell-Pratt Co.

Description:

The Goodell-Pratt Catalog No. 17, issued 1930, lists this patent date on page 320 for their Six Glass Levels, Nos. 6024, 6026, 6028, 6030, 6124, 6126, 6128 and 6130.