| GB Patent: GB-187,803,994 
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| Wrenches | 
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| Patentee: |  |
 | John W. Hyatt (exact or similar names) - Newark, NJ |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Oct. 09, 1878 |  
 
Espacenet patent| Patent Pictures: |  |  |  | J. W. Hyatt Registered Oct 9, 1878 - from *Abridgments of Specifications* |  Report data errors or omissions to steward 
                        Stan Schulz
 
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| Description: |  | Combination quick and screw-adjust nut wrench corresponding to U.S. patent 209,569.  G. C. Hopper was a British patent agent.
Note: Early British patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of registration and the patent # (with "leading zeros" interposed to make the number total nine digits). This patent is #3994 of the year 1878. |  |