US Patent: 603,494
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| Wrench
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Patentees:
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| Frank Aaron (exact or similar names) - Lansing, KS |
| James R. G. Huffman (exact or similar names) - Lansing, KS |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 22, 1897 |
| Granted: |
May 03, 1898 |
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Patent Pictures:
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Frank Aaron and James R. G. Huffman patent May 3, 1898 |
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Stan Schulz
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Description: |
| A lever handle with gripping teeth sets the size and tightens the grip. A secondary lever operates a gripping dog to hold the adjustment. One jaw face has gripping teeth so the wrench can work with nuts or pipe. |
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