| US Patent: 98,029 
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| Improvement in coopers' tool | 
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| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Dec. 21, 1869 |  USPTO (New site tip)
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                        Jeff Joslin
 
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| Description: |  | Ah, the coopers' tool. It is a fine tradition that any mysterious whatsit is identified as a coopers' tool. If you wonder why, just look at this strange thing. And if you wonder exactly what it's for, just go to the USPTO site and read the patent specification; you will be none the wiser for it. |  |