US Patent: 898,996
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| Nut Wrench
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Patentee:
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| George P. Sprague (exact or similar names) - Arlington, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 09, 1907 |
| Granted: |
Sep. 15, 1908 |
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Patent Pictures:
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George P. Sprague patent September 15, 1908 |
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Stan Schulz
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Description: |
| Swivel-head "T" handle ratchet socket wrench; compare to Sprague's parallel patent 898,997 which does not include the ratchet feature. |
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