US Patent: 3,825,245 
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| Workpiece Changer Mechanism for a Machine Tool
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	        Patentees:
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 | John G. Osburn (exact or similar names) - Milwaukee, Milwaukee County, WI |  
| John J. Schachte (exact or similar names) - Wauwatosa, Milwaukee County, WI |  
 
 
| USPTO Classifications: |  
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198/346.1, 198/412, 198/465.1, 269/30, 269/31, 269/57, 269/63, 29/33P, 29/563, 408/67, 414/744.6
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        Patent Dates:
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| Applied: | 
Apr. 24, 1972 | 
 
| Granted: | 
Jul. 23, 1974 | 
 
 
 
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                        Joel Havens "Vintage Machinery" entry for Kearney  Trecker Corp. 
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