| US Patent: 632,230 
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| Revolving Slide Rest | 
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| Patentee: |  |
 | Max Berger (exact or similar names) - Jena, Saxe-Weimar, Germany |  
 
 
 
| Assignees: |  | Carl Zeiss - Jena, Saxe-Weimar, Germany |  
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | May 24, 1898 |  
| Granted: | Sep. 05, 1899 |  USPTO (New site tip)
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                        Joel Havens
 
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| Description: |  | Patent application filed in Germany on 25 Oct., 1897. |  |