Fastening device to be used for doing-up a brassiere

Fastening device for a brassiere and the like consisting of two elements, one of said two elements comprising at least a recess and the other of said two elements comprising at least a solid volume for penetrating into the recess upon fastening the device, each of said two elements further comprising an integral connecting ring attached to a portion of the brassiere and the like, wherein said rings are of the same size, the first of said elements is in the form of a hollow volume having a longitudinal slot of a length less than the depth of the recess receiving the solid volume of the second one of the two elements, said solid volume having a size slightly smaller than that of the recess and being connected to its corresponding connecting ring by a thin plane portion, said thin plane portion being engageable in said slot and having a height enabling said solid volume to be engaged in the recess of the hollow volume, and locking means integral with said solid volume and said hollow volume respectively for releasably holding said solid volume in said hollow volume, wherein the longitudinal axes of said elements are disposed substantially normal to any pull exerted by the fastened portions of said brassiere and the like, wherein said two elements are respectively identical and symmetrical, each of said two elements comprising a male and female element enabling junction of two portions of the brassiere.