| http://www.w3.org/ns/prov#value | - A co-axial coupling having laterally intersecting end elements capable of one being completely passed laterally through the other, releasable means to retain said elements in engagement, said means including an elongated nib on one element, a sleeve movable on the other element and having a bayonet slot to engage the end portion of said nib, and a spring clasp mounted circumjacently on said sleeve
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