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