414 / | HD | MATERIAL OR ARTICLE HANDLING |
426 | WHEEL AND WHEEL-TYPE ARTICLE HANDLER AND TRANSPORTER {4} | |
427 | DF | .~> Elevator-type engaging means |
428 | DF | .~> Vertically swinging article engager |
429 | DF | .~> Opposed horizontally reciprocable engaging elements |
430 | DF | .~> Ramp-type truck |