{HEAD ~ Each push button} has {TAIL ~ its own coiled return spring}, received and detained in a semicylindrical nest, offset laterally on the carriage and overlapping the valve member and the contactor, thus affording a highly compact construction 
has
{ HEAD ~ Each push button } has { TAIL ~ its own coiled return spring } , received and detained in a semicylindrical nest , offset laterally on the carriage and overlapping the valve member and the contactor , thus affording a highly compact construction
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH