| http://www.w3.org/ns/prov#value | - The hinge points 932 and 934 are designed to be movable by the hand of an operator or by a device such as a small wrench or a lever so that the arm 942 and the arm 944 extend upward, horizontally, or downward at various positions in relation to the peripheral sections 903 and 905, respectively, and in alternative embodiments, extend at various horizontal angles relative to the per
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