470 / | HD | THREADED, HEADED FASTENER, OR WASHER MAKING: PROCESS AND APPARATUS |
110 | DF | APPARATUS FOR MAKING HEADED FASTENER, E.G., NAIL, RIVET, ETC. {13} |
121 | .~ Wire nail making {6} | |
122 | DF | .~.~> String nail type |
123 | DF | .~.~> Having multiple header means {1} |
125 | DF | .~.~> Having reciprocating die and header {2} |
128 | DF | .~.~> Having distributing means |
129 | DF | .~.~> Having rotary workholder |
130 | DF | .~.~> Having spiral shank forming means |