The window 9 wherein said window further includes {HEAD ~ a third portion} offset from {TAIL ~ said first portion} and completely within and spaced from said peripheral edges of said sheet 
offset from
The window 9 wherein said window further includes { HEAD ~ a third portion } offset from { TAIL ~ said first portion } and completely within and spaced from said peripheral edges of said sheet
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH