{HEAD ~ Clamping assembly} 40 comprises {TAIL ~ an arm} 42 that extends downwardly from the trays bottom surface 28 substantially adjacent the front edge of the panel 20 
comprises
{ HEAD ~ Clamping assembly } 40 comprises { TAIL ~ an arm } 42 that extends downwardly from the trays bottom surface 28 substantially adjacent the front edge of the panel 20
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 OTH OTH OTH OTH OTH OTH OTH OTH