ELECTROMAX
AUTOMATIC, ELECTRICALLY OPERATED CONTROLLING, INDICATING AND SIGNALLING APPARATUS FUNCTIONING RESPONSIVELY TO THE FLUCTUATIONS OF A VARYING MAGNITUDE OF A CONDITION SUCH AS TEMPERATURE, PRESSURE, ELECTRICAL CONDUCTIVITY, ELECTRICAL IMPEDANCE, ELECTRIC CURRENT, ELECTRIC VOLTAGE, OR THE LIKE, FOR USE IN CONNECTION WITH INDUSTRIAL EQUIPMENT AND APPARATUS SUCH AS DRIERS, OVENS, FURNACES, HEATERS, BATHS, POTS, KETTLES, STILLS, DIES, PLATENS, PRESSES OR THE LIKE, FOR THE PURPOSE OF INCREASING, DECR...
Expired · May 22, 1947 · 71522797 ·