US Patent: 459,241
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| Wrench
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Patentee:
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| Thomas Sherk (exact or similar names) - Fredonia, KS |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 02, 1891 |
| Granted: |
Sep. 08, 1891 |
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Patent Pictures:
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Thomas Sherk patent September 8, 1891 |
USPTO (New site tip) Google Patents
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Stan Schulz
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Description: |
| The shank has threads a third of its circumference. The adjusting nut has an internal stop to prevent it from making a complete revolution. |
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