26 THERMAL RELAYS, HERMETICALLY SEALED TIME DELAY RELAYS, CONTROL ASSEMBLIES OR PANELS INVOLVING THE USE OF A THERMAL RELAY OR TIMED DELAY RELAY, SPECIAL PURPOSE TEST EQUIPMENT AND TEST STANDS-NAMELY, ELECTRICAL, ELECTROMECHANICAL AND ELECTRONIC PRODUCTION QUALITY CONTROL EQUIPMENT, CALIBRATION EQUIPMENT AND ELECTRICAL LABORATORY TEST EQUIPMENT MADE TO CUSTOMERS' SPECIFICATIONS