| DE Patent: DE-51,388 
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| Schraubenschlüssel | 
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| Patentee: |  |
 | Wilhelm Weber (exact or similar names) - Beuthen,  Germany |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Apr. 02, 1890 |  
| Antedated: | Jun. 25, 1889 |  
 
Espacenet patent| Patent Pictures: |  |  |  | German patent 51388 - composite edited image |  Report data errors or omissions to steward 
                        Stan Schulz
 German patent 51388 in ESPACENET
 
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| Description: |  | Quick adjust with the movable jaw position held by a toggle lever that has fine teeth that engage rack teeth on the curved back of the "fixed" jaw. A tension spring is part of the structure.
German patent Klasse 87 (a) Gruppe 8. |  |