Abstract: The invention relates to a hairstyling device (1) comprising two jaws (2, 3), each supporting at one end a treatment surface (10, 11), at least one of which includes a heating element, said jaws (2, 3) being mounted so as to pivot about a hinge (4) at the other end between an open position that allows the hair to be inserted between the two treatment surfaces (10, 11) and a closed position for placing it in contact with the two treatment surfaces (10, 11), said jaws (2, 3) forming two handle halves (5, 6) between the treatment surfaces (10, 11) and the hinge. According to the invention, the device (1) includes return means for the handle halves (5, 6), which cause pressure to be applied to the treatment surfaces (10, 11).

Abstract: The invention concerns an apparatus for measuring a biological parameter of an individual comprising measuring means, means for storing and/or for computing values of said parameter connected to a display (3) for graphic representation of the measured parameter relative to a representation axis. The invention is characterized in that said display (3) is designed to adjust the measured parameter relative to a reference zone delimited on either side on said axis by a fixed mark combined with at least an adjacent digital indication.

Abstract: The invention concerns an apparatus for measuring a subject's body composition comprising a first electronic module (6) for measuring a bioelectric impedance and at least an electric power source (10) for generating a variable electric signal (11) which passes through the body or part of the body of the subject when the latter is connected to the measuring apparatus (2). The invention is characterized in that said power source is a voltage generator (10) designed to supply a rectangular voltage signal (11).