US Patent: 512,159
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| Wrench
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Patentee:
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| Harry Cooper (exact or similar names) - Toronto, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 06, 1893 |
| Granted: |
Jan. 02, 1894 |
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Patent Pictures:
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Harry Cooper patent January 2, 1894 |
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Stan Schulz
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Description: |
| The spring-loaded pawls are spaced differently than the rack teeth, and each pawl has two teeth; the aim being one or the other of the pawls catching a rack tooth for close adjustment. |
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