475 / | HD | PLANETARY GEAR TRANSMISSION SYSTEMS OR COMPONENTS |
162 | DF | PLANET PERIPHERY SURROUNDS AXIS OF INTERACTING GEAR (E.G., ECCENTRICALLY DRIVEN TRANSMISSON) {11} |
169 | DF | .~ Means to change speed ratio between input and output {4} |
173 | .~.~ Plural planetary elements braked |