| http://www.w3.org/ns/prov#value | - ngage two rear corners of said article, said rear brackets being fastened to said base plate in such a manner as to be adjustable rotationally and horizontally, and having a vertically adjustable portion with an overhanging element, whereby to be adjustable and then fixed to hold said separate article at these brackets against being lifted or shifted rearwardly or sidewardly relative to the mount
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