A leg exercise device for a person exercising their legs while lying on their back on a exercise bench, the leg exercise device attaching to the rear portion of the exercise bench, the device having a cross-arm above the level of the bench to receive the person's feet, the cross-arm attached to the end...http://www.google.com.au/patents/US4211403?utm_source=gb-gplus-sharePatent US4211403 - Weight lifting leg exercise device
