| 475 / | HD | PLANETARY GEAR TRANSMISSION SYSTEMS OR COMPONENTS |
| 31 | DF | FLUID DRIVE OR CONTROL OF PLANETARY GEARING {11} |
| 116 | DF | .~ Fluid controlled mechanical clutch or brake {12} |
| 118 | DF | .~.~ Speed responsive control {3} |
| 121 | DF | .~.~.~ Ratio change {1} |
| 122 | DF | .~.~.~.~ Speed responsive valve control {2} |
| 124 | ![]() | .~.~.~.~.~ Centrifugal control |