{HEAD ~ The invention} 2 wherein {TAIL ~ the cam locking plate} includes a first portion depending from said pilot pin and terminating in said cam surface, a second portion upstanding from said pilot pin opposite from said first portion and having said arcuate slot provided therein, the center of said slot being on the axis of the pilot pin 
{ HEAD ~ The invention } 2 wherein { TAIL ~ the cam locking plate } includes a first portion depending from said pilot pin and terminating in said cam surface , a second portion upstanding from said pilot pin opposite from said first portion and having said arcuate slot provided therein , the center of said slot being on the axis of the pilot pin
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