US Patent: 1,752,112
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Spirit level
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Patentees:
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Charles D. Severance (exact or similar names) - Greenfield, MA |
Raymond O. Stetson (exact or similar names) - Greenfield, MA |
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Patent Dates:
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Applied: |
Jun. 26, 1928 |
Granted: |
Mar. 25, 1930 |
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Jeff Joslin Vintage Machinery entry for Goodell-Pratt Co.
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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. |
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