| US Patent: 36,906 
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| Improvement in Spirit-Levels | 
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| Patentee: |  |
 | Thomas N. Hosmer (exact or similar names) - Todd's Valley, CA |  
 
 
 
 
 
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| Patent Dates: |  
| Granted: | Nov. 11, 1862 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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                        Ralph Brendler
 
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| Description: |  | This patent covers a design for replaceable vials in a level, as well as the adjustment of the level vial while the level is assembled.  This design was used on several early Stanley levels. |  |