| http://www.w3.org/ns/prov#value | - In yet another embodiment, the device 10 may include a notched bar along which the operative element 14 can be moved and locked in any one of the notches. [0040] Alternatively, if it is not necessary to provide multiple securing positions for the operative element 14, the operative element 14 can be secured to one predetermined position on the structure 12 by a connection, such as a screw or an ad
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