US Patent: 422,526
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| Wrench
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Patentee:
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| Frederick E. Heinig (exact or similar names) - Louisville, KY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 08, 1889 |
| Granted: |
Mar. 04, 1890 |
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Patent Pictures:
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Frederick E. Heinig patent March 4, 1890 |
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Stan Schulz
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Description: |
| Jar lid wrench with a "Y" shaped head to form two contact points, and a swinging handle with two cam lobes to form the third contact point. The three contact points may include fine teeth. |
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