US Patent: 432,584
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| Watch Key
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Patentee:
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| Rudolph Ueltzen (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 11, 1890 |
| Granted: |
Jul. 22, 1890 |
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Patent Pictures:
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Rudolph Ueltzen patent July 22, 1890 |
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Stan Schulz
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Description: |
| The jaws spring open. The jaws can partially rotate in the barrel of the key, and are closed by the cam-action tapered openings. The jaws on one end of the barrel close with clock-wise rotation; the jaws on the other end, with counter-clockwise rotation. |
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