24 / | HD | BUCKLES, BUTTONS, CLASPS, ETC. |
572 | DF | SEPARABLE-FASTENER OR REQUIRED COMPONENT THEREOF {5} |
588 | DF | .~ Including receiving member having cavity and mating member having insertable projection guided to interlock thereby {12} |
590 | DF | .~.~ Projection or cavity rotates about axis of cavity access opening to interlock {2} |
591 | DF | .~.~.~ Having projection rotatably connected to its member {3} |
592 | .~.~.~.~ And operator therefor |