| http://www.w3.org/ns/prov#value | - These paddles may be cast from non-corrosive metal or may be constructed of wood or other suitable material and are preferably provided with attachment ears 220/. which are pivoted to the inner sides of the spaced chains l2, the bodies of the paddles extending somewhat beyond the chains and serving as abutment means at their inner edges to prevent swinging of the paddles past the position shown in
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