Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
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53/00
Relays using the dynamo-electric effect, i.e. relays in which contacts are opened or closed due to relative movement of current-carrying conductor and magnetic field caused by force of interaction between them
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H01H53/02
Electrodynamic relays, i.e. relays in which the interaction is between two current-carrying conductors
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H01H53/04
Ferrodynamic relays, i.e. relays in which the magnetic field is concentrated in ferromagnetic parts
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