| US Patent: 2,166,940 
 | 
| Hydraulic Power System | 
| 
| Patentee: |  |
 | Conrad M. Conradson (exact or similar names) - Detroit, Wayne County, MI |  
 
| USPTO Classifications: |  | 137/338, 137/341, 137/505, 137/505.38, 137/625.17, 137/636.4, 165/279, 236/12.17, 60/329, 82/900, 91/450, 91/470 |  
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
 | 
| Patent Dates: |  
| Applied: | Mar. 12, 1930 |  
| Granted: | Jul. 25, 1939 |  USPTO (New site tip)
 Google Patents
 Report data errors or omissions to steward 
                        Joel Havens
 
 | 
| 
| Description: |  | Application renewed 29 Sept 1938. |  |