The apparatus 9 further comprising {HEAD ~ a second projection} formed on {TAIL ~ the body} adjacent the first projection when the cover is fitted to the body, the first and second projections being simultaneously operated with only one hand to open the cover 
formed on
The apparatus 9 further comprising { HEAD ~ a second projection } formed on { TAIL ~ the body } adjacent the first projection when the cover is fitted to the body , the first and second projections being simultaneously operated with only one hand to open the cover
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH