26 SCIENTIFIC AND MEASURING EQUIPMENT, BOTH NEW AND REPAIRED-NAMELY, ULTRASONIC SENSING CONTROLS; AUTOTRON PHOTO-ELECTRIC CONTROLS; TEMPERATURE CONTROLS; INDUSTRIAL TIMERS; CARTRIDGE, IMMERSION AND SURFACE PYROMETERS; STRIP AND DIAL CHARTS FOR INDUSTRIAL RECORDERS; THERMOCOUPLES, ACCESSORIES; INDICATING, CONTROLLING, AND RECORDING INSTRUMENTS