| US Patent: 2,286,880 
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| Hydraulic Control System | 
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| Patentee: |  |
 | William A. Traut (exact or similar names) - West Allis, WI |  
 
| USPTO Classifications: |  | 137/596.14, 137/624.27, 137/637, 251/257, 251/31, 60/427, 60/460, 60/471, 91/420, 91/443, 91/446, 91/448, 91/536, 91/6 |  
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jul. 05, 1940 |  
| Granted: | Jun. 16, 1942 |  USPTO (New site tip)
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                        Stan Schulz
 
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| Description: |  | Morsell, Lieber & Morsell - patent attorneys |  |