Abstract: An electronic device support member is fitted into and pressingly attached to a cover so that a face on which an electronic device and an antenna are disposed is opposed to the rear face of the cover. A base has a fitting receive portion into which a fitting portion of the cover is to be fitted, on the peripheral edge of the surface opposed to the cover. Two elastic claws are disposed on the peripheral edge of the rear face. A second housing has a recess portion into which a memory chip is to be fitted and secured, in the surface. The recess portion is formed into a circular concave shape, and has two engagement portions for respectively receiving the elastic claws of the memory chip.

Abstract: A chewing gum for preventing pyorrhea alveolaris contains 0.2 to 3.0% of lysozyme of egg white and 0.05 to 0.5% of mace extract.

Abstract: A system and method for checking the concentration of an electrolyte in a solution utilizing ion-selective electrodes for sequentially measuring potential levels of a sample solution and a correction solution at selected time intervals. The potential levels of the positive and negative ions in the sample and corrective solutions are then compared with a standard potential level for the correction solution. A procedure determines if an abnormal deviation in the sample solution exists and if this abnormal deviation is caused by the actual concentration of electrolytes in the sample solution or if the abnmormality is caused by an error in measurement. An alarm is sounded to indicate that the abnormality exists and the cause of the abnormality.

Abstract: An ion selective electrode apparatus for measuring ion activity of solution flowing through a conduit, wherein at least one earth electrode is disposed so as to contact the solution. The earth electrode is capable of shunting electrical noise flowing through the conduit to earth. In the preferred embodiment, an ion selective electrode and a reference electrode are disposed along the conduit between two earth electrodes so as to protect the ion selective and reference electrodes from the electrical noise which may be introduced into the ends of the conduit.