US Patent: 298,043
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| Wrench
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Patentee:
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| Nathaniel W. Vandegrift (exact or similar names) - Bridgeport, CT |
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Patent Dates:
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| Applied: |
Nov. 05, 1883 |
| Granted: |
May 06, 1884 |
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Patent Pictures:
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1 | 2
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Nathaniel V. Vandegrift Pat. May 6, 1884 |
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Stan Schulz
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Description: |
| This patent was used by the Armstrong Mfg. Co. of Bridgeport, CT for their screw-adjust pipe wrench. The wrench also draws upon Armstrong & Vandegrift's patent No. 392,300 granted November 6, 1888. |
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