| US Patent: 4,028,599 
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| Method of Controlling an A.C. Motor | 
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| Patentees: |  
 | John J. Schachte (exact or similar names) - Wauwatosa, Milwaukee County, WI |  | Richard E. Stobbe (exact or similar names) - Greenfield, Milwaukee County, WI |  | Edward E. Kirkham (exact or similar names) - Brookfield, Waukesha County, WI |  | Frank Zankl (exact or similar names) - Milwaukee, WI |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Feb. 19, 1975 |  
| Granted: | Jun. 07, 1977 |  USPTO (New site tip)
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                        Jeff Joslin
 Vintage Machinery entry for Kearney & Trecker Corp.
 
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