{HEAD ~ the linkage assembly} further including {TAIL ~ a retainer} operable to transfer forces between the actuator lever to the pushbutton 
{ HEAD ~ the linkage assembly } further including { TAIL ~ a retainer } operable to transfer forces between the actuator lever to the pushbutton
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH