| US Patent: 2,558,440 
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| Adjustable Fulcrum Pliers | 
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| Patentee: |  |
 | Joseph N. Johnson (exact or similar names) - Oakland, Alameda County, CA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Apr. 22, 1947 |  
| Granted: | Jun. 26, 1951 |  USPTO (New site tip)
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                        Stan Schulz
 
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| Description: |  | Munn, Liddy & Glascum - patent attorneys 
Cited as "prior art" in patent no. 5,351,585. |  |