| http://www.w3.org/ns/prov#value | - To this end, according to the present invention, there is provided a connector in which a pair of metallic plates are disposed in both a plug and a socket; engagement means are provided in such a manner as to make an engagement between these metallic plates when the plug and the socket are connected to each other so as to lock the plug and the socket; and the metallic plates of the plug and socket
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