73074632
Jan 19, 1976
Oct 5, 1976
Active Trademark
LUNG EXERCISING DEVICE [ -NAMELY, AN APPARATUS INTENDED TO AID PERSONS IN THE DEVELOPMENT OF CONTRACTILE STRENGTH FOR THEIR LUNGS, TO INCREASE THE STRENGTH OF EXHALATION, AND TO PROVIDE AN ISOMETRIC-ISOTONIC TYPE OF EXERCISE FOR THE USER'S LUNGS ]
Medical Apparatus