24 / | HD | BUCKLES, BUTTONS, CLASPS, ETC. |
572 | DF | SEPARABLE-FASTENER OR REQUIRED COMPONENT THEREOF {5} |
580 | DF | .~ Including member having distinct formations and mating member selectively interlocking therewith {4} |
584 | DF | .~.~ Selectively interlocking member having movably attached or biased interlocking component {1} |
585 | .~.~.~ And cavity for guiding movement of formations |