The apparatus 9 further comprising a second projection formed on the body adjacent {HEAD ~ 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 {TAIL ~ the cover} 
The apparatus 9 further comprising a second projection formed on the body adjacent { HEAD ~ 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 { TAIL ~ the cover }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL