| US Patent: 651,057 
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| Steel Square | 
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| Patentee: |  |
 | Artemas Roberts (exact or similar names) - Normal, NE |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Nov. 18, 1899 |  
| Granted: | Jun. 05, 1900 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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                        Russ Allen.
 "Vintage Machinery" entry for Sargent & Co.
 
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| Description: |  | Table gives lengths of rafters having a defined pitch and a given horizontal run. 
Patent date seen marked on a Sargent & Co square and Henry B. Sargent references this patent in his patent 1,102,689. 
This patent appears on a Sargent VBM 500CR square (pic 2) with the 1,102,689 patent on the opposite side. |  |