SIGMA INSTRUMENTS, INC.

CYCLOPULSER

DRIVE CIRCUITS FOR STEPPING MOTORS AND STEPPING SWITCHES;

DATACEL

PORTABLE AMPLIFIERS WITH SPACE AND WIRING FOR METERS, AMMETERS, JUNCTION BOXES, POWER LINE SENSING AND RELATED EQUIPMENT FOR MAKING LOAD SURVEYS OF ELECTRIC POWER TRANSMISSION AND DISTRIBUTION SYSTEMS;

DATACEL

OPTOELECTRONIC AND OPTICAL ELECTRONIC LIGHT SENSITIVE LOGIC, SWITCHING AND DETECTING DEVICES;DATACELL;

DATACEL

PHOTORELAYS;DATACELL;

DUO-VOLT

Photo-Electric Light Control Switches;

ENERGY MONITOR

LOCALLY READABLE AND REMOTELY READABLE WATT-HOUR METERS;

FLAT-PAK

Electric Meters-Namely, Panel Meters;

FP

TIMERS, VOLTAGE CONTROLS, LIGHTING CONTROLS, REGISTER CONTROLS, SCANNERS, PHOTO RELAY RECEIVERS AND LIGHT SOURCES, AND MISS DETECTORS;RELAYS, PHOTO RELAYS, CURRENT SENSORS, FLASHERS, AMPLIFIERS, ADAPTERS FOR LIGHTING CONTROLS FOR LUMINARIES, CIRCUITRY FOR CONTROLLING CAPACITORS TO CORRECT THE POWER FACTOR, EXCLUDING CAPACITORS PER SE, LIGHTNING ARRESTORS, AND PICK-UP ASSEMBLIES FOR POWER LINES;

II

ELECTRICAL INDICATING INSTRUMENTS;2;

LUMIGRAPH

Electrical Instruments-Namely, for Indicating Values in an Analog Manner;

MICROFRE

Medical and therapeutic device for stimulating muscle and neural pathways and increasing blood circulation to reduce cellulite, urinary incontinence, erectile dysfunction, and facial wrinkles;

S

ELECTROMECHANICAL RELAYS, [ REED RELAYS, ] ELECTROMECHANICAL MAGNETICALLY LATCHING RELAYS, [ ACOUSTICAL SWITCHES, STEPPING MOTORS, STEPPING MOTOR DRIVES, STEPPING MOTOR SWITCH COMBINATIONS, ] MAGNETIC AMPLIFIERS, PHOTO RELAYS, LIGHT SOURCES FOR PHOTO RELAYS, TRANSISTOR AMPLIFIERS, [ SERVO-MECHANISMS, ] TRANSFORMERS AND RECTIFIER ASSEMBLIES;

S

THE MARK CONSISTS OF THE LETTER S AND DESIGN;ELECTRICAL TESTING AND MEASURING EQUIPMENT-NAMELY, ELECTRICAL AND MAGNETIC PICK-UP EQUIPMENT FOR TESTING POWER LINES, INDICATING ELECTRICAL COUNTERS, RELAY TEST SETS, AUTOMATIC TEMPERATURE CONTROLLERS AND INDICATING MEASURING SYSTEMS FOR POWER LINES;