Patent classifications
H
ELECTRICITY
Load children
H01
ELECTRIC ELEMENTS
Load children
H01H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
Load children
3/00
Mechanisms for operating contacts
Load children Filter patents View analytics View as hierarchy
H01H3/005
making use of superconductivity, e.g. levitation switch
Filter patents View analytics View as hierarchy