73133636
Jul 12, 1977
May 15, 1979
PRECIOUS METALS FOR DENTAL USE-NAMELY, CASTING GOLDS, SOLDERS, FOIL; AND DIE LUBRICANT
PharmaceuticalsDENTAL LABORATORY EQUIPMENT-NAMELY, BURNOUT FURNACES, MODEL TRIMMERS, ULTRASONIC CLEANERS, AIR ABRASIVE SYSTEMS, OXYGEN SYSTEMS, TORCHES; SHADE SCANNERS; DENTAL LABORATORY MATERIALS-NAMELY, DOWEL PINS, AND PLASTIC THERMOFORMIC DISCS
Electrical and Scientific Apparatus