US Patent: 1,998,003 
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| Hydraulic Feed Control
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	        Patentees:
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 | Hans Ernst (exact or similar names) - Cincinnati, Hamilton County, OH |  
| Charles W. McK. Goodrich (exact or similar names) - Cincinnati, Hamilton County, OH |  
| Lester F. Nenninger (exact or similar names) - Cincinnati, Hamilton County, OH |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
Feb. 28, 1929 | 
 
| Granted: | 
Apr. 16, 1935 | 
 
 
 
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                        Joel Havens "Vintage Machinery" entry for Cincinnati Milling Machine Co. 
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        Description: |  
| This patent number was seen on a Cincinnati Milling Machine Co. patent plate 4FV-101. |  
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