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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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3/00
Mechanisms for operating contacts
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H01H3/22
Power arrangements internal to the switch for operating the driving mechanism
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H01H3/30
using spring motor
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H01H3/3031
Means for locking the spring in a charged state
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