| US Patent: 545,188 
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| Drop Hammer | 
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| Patentees: |  
 | Frederic C. Billings (exact or similar names) - Hartford, CT |  | Frank Lombard (exact or similar names) - Hartford, CT |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Feb. 15, 1895 |  
| Granted: | Aug. 27, 1895 |  USPTO (New site tip)
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                        Joel Havens
 "Vintage Machinery" entry for Billings & Spencer Co.
 
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| Description: |  | F. H. Richards - patent attorney 
This patent corresponds to Canadian patent #CA-51,763. |  |