US Patent: 1,378,209
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| Wrench
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Patentee:
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| Jerome E. Bergman (exact or similar names) - Buffalo, NY |
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Patent Dates:
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| Applied: |
May 08, 1919 |
| Granted: |
May 17, 1921 |
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Patent Pictures:
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1 | 2
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Jerome E. Bergman patent May 17, 1921 |
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Stan Schulz
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Description: |
| The drawing shows a curved handle adjustable open end wrench like those manufactured by Bergman. The main feature of the patent is a friction adjustment lock. This adjustment lock was not included in the Bergman Queen City line of curved handle adjustables. |
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