{HEAD ~ The data processing device} 8, wherein a second connector unit pivotally attaches said second support column to said customer display device, permitting horizontal rotation of said customer display device at a plurality of {TAIL ~ angles} 
{ HEAD ~ The data processing device } 8 , wherein a second connector unit pivotally attaches said second support column to said customer display device , permitting horizontal rotation of said customer display device at a plurality of { TAIL ~ angles }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH TAIL TAIL TAIL TAIL TAIL