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 {HEAD ~ a plurality} of {TAIL ~ angles} 
of
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 { HEAD ~ a plurality } of { TAIL ~ angles }
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 OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL