US Patent: 121,027
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| Wrench
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Patentees:
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| Nelson Warren (exact or similar names) - Wilmington, DE |
| James C. Stock (exact or similar names) - Wilmington, DE |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 22, 1871 |
| Granted: |
Nov. 14, 1871 |
| Antedated: |
Oct. 28, 1871 |
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Patent Pictures:
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Nelson Warren and James C. Stock Pat. Oct. 28, 1871 |
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Stan Schulz
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Description: |
| The patented feature is the seat for the adjusting screw, the block that fits in a notch in the bar to take the strain of the adjusting screw, and the ferule shaped to hold the block in place. |
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