| US Patent: 191,412 
 | 
| Wrench | 
| 
| Patentee: |  |
 | Samuel Christoffer Englund (exact or similar names) - Moline, IL |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
 | 
| Patent Dates: |  
| Applied: | May 01, 1877 |  
| Granted: | May 29, 1877 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Samuel Christoffer Englund Pat. May 29, 1877 |  Google Patents
 Report data errors or omissions to steward 
                        Stan Schulz
 
 | 
| 
| Description: |  | Quick-adjust with rack on fore-edge of shank and compression spring inside back portion of sliding jaw. Semi-exposed spring is intended to be easily replaced. |  |