| US Patent: 813,561 
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| Level | 
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| Patentee: |  |
 | Rudolph Leonhart (exact or similar names) - San Anselmo, CA |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Oct. 04, 1905 |  
| Granted: | Feb. 27, 1906 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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                        Russ Allen.
 
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| Description: |  | A removeable/small level designed to allow a carpenter to use any scrap lumber with a straight edge to make a level at the work site instead of carrying a long level there. The level is attached with two screws/nails and can be rotated to the proper position for plumb/level. 
Known example is marked, "LEONHART'S LEVEL" PAT FEB 27, 06" |  |