The upper casing member is provided at a rear portion of both sides thereof with {TAIL ~ holding members} through which {HEAD ~ the casing} is grasped 
through is grasped
The upper casing member is provided at a rear portion of both sides thereof with { TAIL ~ holding members } through which { HEAD ~ the casing } is grasped
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL REL OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL