470 / | HD | THREADED, HEADED FASTENER, OR WASHER MAKING: PROCESS AND APPARATUS |
110 | DF | APPARATUS FOR MAKING HEADED FASTENER, E.G., NAIL, RIVET, ETC. {13} |
111 | DF | .~ Horseshoe nail making {5} |
117 | DF | .~.~ Having roll forging means {1} |
118 | .~.~.~ Traveling roll type |