73458492
Dec 27, 1983
Jan 29, 1985
Active Trademark
Anti-Tension Assistance Device Consisting of a Dual Earphone Assembly and a Headband, the Headband Having Electronic Means for Sensing Activity Level in the Frontalis Muscles and for Generating a Tone Proportional to the Activity Level which Tone Is Communicated to the Wearer of the Headband of the Device Through the Earphones
Medical Apparatus