| US Patent: 825,320 
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| Spirit-Level | 
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| Patentee: |  |
 | Edward G. Hewitt (exact or similar names) - New York, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jul. 08, 1905 |  
| Granted: | Jul. 10, 1906 |  USPTO (New site tip)
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                        Ralph Brendler
 
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| Description: |  | This is a design for a metal evel for carpenters and masons.  It is lighter than a standard machinists level, but retains the same accuracy. |  |