{HEAD ~ The storage magazines} are mounted on {TAIL ~ the elevator assembly}, and wafer transfer blades transfer the wafers between the magazines and radially moveable chucks which carry the wafers to and from the wafer holding positions in the trays 
{ HEAD ~ The storage magazines } are mounted on { TAIL ~ the elevator assembly } , and wafer transfer blades transfer the wafers between the magazines and radially moveable chucks which carry the wafers to and from the wafer holding positions in the trays
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL 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