More particularly, it is {HEAD ~ an object} of the present invention to provide a face to face {TAIL ~ plate type swivel} with an interposed frictionless bearing material which functions to center the swivel plates and to decrease the resistance to rotation of the rotary plate 
More particularly , it is { HEAD ~ an object } of the present invention to provide a face to face { TAIL ~ plate type swivel } with an interposed frictionless bearing material which functions to center the swivel plates and to decrease the resistance to rotation of the rotary plate
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