72105919
Oct 6, 1960
Jul 11, 1967
ULTRASONIC CLEANING EQUIPMENT AND PARTS THEREFOR-NAMELY, TANKS FOR CONTAINING CLEANING LIQUID WITH MECHANISM FOR SETTING UP COMPRESSION WAVES AT ULTRASONIC FREQUENCIES WITHIN THE LIQUID, AND USED FOR CLEANING THE SURFACE OF AND REMOVING FOREIGN PARTICLES FROM OBJECTS PLACED IN THE LIQUID
Housewares and Glass