| US Patent: 1,801,686 
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| Machine-Tool Organization | 
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| Patentees: |  
 | Fred A. Parsons (exact or similar names) - Milwaukee, Milwaukee County, WI |  | Joseph B. Armitage (exact or similar names) - Milwaukee, Milwaukee County, WI |  | Edward J. Kearney (exact or similar names) - Wauwatosa, Milwaukee County, WI |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Nov. 17, 1924 |  
| Granted: | Apr. 21, 1931 |  USPTO (New site tip)
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                        Joel Havens
 "Vintage Machinery" entry for Kearney & Trecker Co.
 
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