More particularly, first and second arcuate members 80 and 82 are cut away in {HEAD ~ precisely the same manner} described in {TAIL ~ connection} with FIG 2 so that the peripheral portions thereof will accept the ring top 90 
More particularly , first and second arcuate members 80 and 82 are cut away in { HEAD ~ precisely the same manner } described in { TAIL ~ connection } with FIG 2 so that the peripheral portions thereof will accept the ring top 90
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