TESCO - THE EASTERN SPECIALTY COMPANY

apparatus for testing a battery charger

Electrical arc detection circuit used with an electric meter socket; "SOCKET ARC DETECT"

Artificial and Resistance Loads, Watt-Hour Meter Testing Units, Electrical Transformer Testing Units, Electrical Meters, Phase Analyzers, Electrical Adapters, Contactors, Electrical Power Supplies, Electronic Voltmeters, Transformers, and Transformer Loss Compensators

Electrical Instruments for Central-Station Uses-Namely, Artificial Load Transformers, Testing Switches, [ and Multiple Contactors Adapted for Testing Meters, Transformers, ] and [ the Like; ] Connectors, Terminal Lugs, Terminal Clips [; Radio Receiving Sets and Parts Thereof-Namely, Variocouplers, Variometers, Condensers, Rheostats, and Transformers ]