LEEDS & NORTHRUP COMPANY

ACCUGUARD

controlled flow-through module of pipes and valves used for the purpose of automatically cleaning and/or calibrating electrodes located in the module or in a container;ACCU-GUARD; ACCURATE GUARD;

BATESTER LOLLY POP

TESTING EQUIPMENT-NAMELY, MOLTEN METAL SAMPLER;JULY 24, 1964, AS TO BATESTER PER SE; AUG. 3, 1964, AS TO BATESTER AND LOLLY POP.;JULY 24, 1964, AS TO BATESTER PER SE; AUG. 3, 1964, AS TO BATESTER AND LOLLY POP.;

CENTRY

INDUSTRIAL PROCESS CONTROL APPARATUS AND SYSTEMS-NAMELY, AUTOMATIC, MANUAL, AND COMPUTER-COMPATIBLE PROCESS CONTROLLERS; TRANSMITTERS OF PRESSURE, AND DIFFERENTIAL PRESSURE; AND SIGNAL CONDITIONERS;

DIGIMAX

SINGLE AND MULTIPOINT DIGITAL MEASURING, INDICATING, ALARMING AND PRINTING INSTRUMENTS;

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, DECREASING, AND MAINTAINING AT A PREDETERMINED MAGNITUDE THE VARIABLE CONDITION ENCOUNTERED IN CARRYING OUT OF INDUSTRIAL PROCESSES WHERE THE VARIABLE MAGNITUDE OF THE CONDITION IS TO BE MAINTAINED WITHIN PREDETERMINED OPERATING LIMITS, AND FOR PARTS OF AND ACCESSORIES FOR SUCH APPARATUS, CONTROLLERS, AND CONTROLLERS COMBINED WITH SIGNALING MEANS;

ENZYMAX