| US Patent: 647,975 
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| Automatic Feeding and Regulating Device for Machine Tools | 
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| Patentees: |  
 | Henry Anton Liebert (exact or similar names) - Milnrow, Lancaster County,  England |  | Emil Liebert (exact or similar names) - Milnrow, Lancaster County,  England |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Dec. 08, 1899 |  
| Granted: | Apr. 24, 1900 |  USPTO (New site tip)
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                        Joel Havens
 
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| Description: |  | Patent applied for in Great Britain, 01 Mar., 1899, #4,473. |  |