| http://www.w3.org/ns/prov#value | - Thus, if one wanted to use the switch 140 to turn off a lamp or other load operated by the device 40, it is necessary only to momentarily press push-button switch 150 to close the switch, thus causing the operation of the magnetic latching relay or other auxiliary switching circuitry which deenergizes the triac or other controllably conductive device which connects the load to the energizing sourc
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