482 / | HD | EXERCISE DEVICES |
92 | DF | USER MANIPULATED FORCE RESISTING APPARATUS, COMPONENT THEREOF, OR ACCESSORY THEREFOR {8} |
114 | .~ Utilizing frictional force resistance {2} | |
115 | DF | .~.~> Including rotating friction element {3} |
120 | DF | .~.~> Including rope element wrapped about another element |