| US Patent: 53,661 
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| Improvement in machines for blocking and shaping hats | 
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| Patentees: |  
 | George Osterheld (exact or similar names) - Yonkers, NY |  | Rudolf Eickemeyer (exact or similar names) - Yonkers, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Apr. 03, 1866 |  USPTO (New site tip)
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                        Jeff Joslin
 Vintage Machinery entry for Osterheld & Eickemeyer
 
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| Description: |  | Of interest because the inventors also made a copy lathe (that seems to have never been patented). |  |