| http://www.w3.org/ns/prov#value | - having a part thereon adapted to seat in the opening in said cover plate to thereby dispose the removable part in predetermined relation with the wall or the like, and means for securing said removable part to said post and said cover plate over said base and including a member loosely secured in said removable part and spring biased into gripping engagement with said post, said removable part ha
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