Each push button has a carriage adapted to be fitted on one side with {HEAD ~ an optional leaf spring contactor} engageable with {TAIL ~ fixed contact members} 
engageable with
Each push button has a carriage adapted to be fitted on one side with { HEAD ~ an optional leaf spring contactor } engageable with { TAIL ~ fixed contact members }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL