| US Patent: 1,497,513 
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| Machine for operating on floors or other surfaces | 
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| Patentee: |  |
 | George L. Kelley (exact or similar names) - Buffalo, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Oct. 16, 1920 |  
| Granted: | Jun. 10, 1924 |  USPTO (New site tip)
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                        Jeff Joslin
 Vintage Machinery entry for Kelley Electric Machine Co.
 
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| Description: |  | This patent is of interest because the inventor also invented the first handheld router, patent 877,894. |  |