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} |
136 | .~.~ With ancillary pump or governor drive {1} | |
137 | DF | .~.~.~> Plural pumps |