| US Patent: 261,274 
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| Patentee: |  |
 | Frederick H. Sweet (exact or similar names) - Williamsport, PA |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Jun. 05, 1882 |  
| Granted: | Jul. 18, 1882 |  USPTO (New site tip)
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                        Jeff Joslin
 Vintage Machinery entry for Rowley & Hermance Co.
 
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| Description: |  | Inventor Fred Sweet was working for Rowley & Hermance but left about the time of this patent application to join Millspaugh Brothers, which then changed its name to Williamsport Machine Co. |  |