| US Patent: 1,842,425 
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| Feed Mechanism for Machine Tools | 
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| Patentees: |  
 | Harry L. Rambo (exact or similar names) - Cincinnati, Hamilton County, OH |  | Thomas Addison (exact or similar names) - Cincinnati, Hamilton County, OH |  | George Langen (exact or similar names) - Cincinnati, Hamilton County, OH |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Aug. 05, 1925 |  
| Granted: | Jan. 26, 1932 |  USPTO (New site tip)
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                        Joel Havens
 
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