The present invention is generally directed to {HEAD ~ the field} of document handling and {TAIL ~ processing technology} and, in particular, to improvements relating to the accumulation of material units 
of
The present invention is generally directed to { HEAD ~ the field } of document handling and { TAIL ~ processing technology } and , in particular , to improvements relating to the accumulation of material units
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH