Clutches; Spring assemblies; Speed regulators, e.g. centrifugal brakes

Full Title

Substation equipment, e.g. for use by subscribers > Devices for calling a subscriber > Devices which can set up and transmit only one digit at a time > by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses > Clutches; Spring assemblies; Speed regulators, e.g. centrifugal brakes

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC COMMUNICATION TECHNIQUE

Subclass:

TELEPHONIC COMMUNICATION