| US Patent: 101,356 
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| Improved machine for shearing metal | 
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| Patentees: |  
 | Ellis Doty (exact or similar names) - Janesville, WI |  | Hamilton Richardson (exact or similar names) - Janesville, WI |  
 
 
 
 
 
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| Patent Dates: |  
| Granted: | Mar. 29, 1870 |  USPTO (New site tip)
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                        Jeff Joslin
 
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| Description: |  | An undated poster reads, "Doty Mfg. Co. / Founders, Manufacturers & Machinists, of Doty's Patent Improved Punching & Shearing Machinery..." |  |