US Patent: 631,801
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| Wrench.
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Patentees:
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| Rudolph L. Levin (exact or similar names) - Menominee, MI |
| Charles Bongfeldt (exact or similar names) - Menominee, MI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 21, 1899 |
| Granted: |
Aug. 29, 1899 |
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Patent Pictures:
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Rudolph L. Levin and Charles Bongfeldt patent Aug. 29, 1899 |
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Stan Schulz
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Description: |
| This is a palm-size spoke nipple wrench; the spring opens the jaws. If properly manipulated, it can be clamped to a wheel spoke and nipple by depressing the lever handle while the spoke is in the longitudinal groove that crosses the body, and then putting the end of the lever handle "below" the spoke to keep the lever spring in tension. |
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