GUILDLINE

ELECTRICAL MEASURING INSTRUMENTS AND STANDARDS AND PARTS THEREOF-NAMELY, [ POTENTIOMETERS;] BRIDGES FOR MEASUREMENT OF RESISTANCE, CAPACITANCE, INDUCTANCE TEMPERATURE; [ GALVANOMETERS; PHOTOCELL GALVANOMETER AMPLIFIERS; ] STANDARDS OF VOLTAGE AND RESISTANCE, FOR STANDARDS LABORATORIES; CONSTANT TEMPERATURE OIL BATHS AND AIR BATHS; [ TRANSFORMER CALIBRATION EQUIPMENT; AND SPECIAL PURPOSE PRESS BUTTON AND ROTARY SWITCHES FOR USE WITH THE AFOREMENTIONED PRODUCTS]