US Patent: 889,246
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| Wrench
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Patentees:
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| Mahlon E. Layne (exact or similar names) - Houston, Harris County, TX |
| Samuel N. Hall (exact or similar names) - Houston, Harris County, TX |
| USPTO Classifications: |
| 81/70 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 03, 1907 |
| Granted: |
Jun. 02, 1908 |
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Patent Pictures:
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Mahlon E. Layne & Samuel N. Hall patent June 2, 1908 |
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Stan Schulz
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Description: |
| Chain wrench with two reversible, interchangeable, side plates forming the gripping jaws. In this patent, the side plates have identical gripping surfaces on both long sides.
Improved by Samuel N. Hall's patent no. 1,107,936.
See also parallel patents 889,244 & 889,245. |
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