US Patent: 20,943
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| Carpenter's Rule
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Patentee:
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| Wm. O. C. Fritschler (exact or similar names) - Brooklyn, NY |
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Patent Dates:
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| Granted: |
Jul. 20, 1858 |
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Patent Pictures:
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Russ Allen.
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Description: |
| Called by the inventor "Combined Square, Plumb, Sextant, and Level." Known example is marked "W.O.C. FRITSCHLER PATENT" and "JULY 20, 1858" Only one arm has scale markings. Known example closely follows the patent drawing. A similarity with L.C. Stephen's patent, 19,105, can be seen. |
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