The exterior housing, which includes major faces and intersection seams, has at least two female slots that project inward at {HEAD ~ an angle} that is non orthogonal to the major faces or {TAIL ~ intersection seams} 
is non orthogonal to
The exterior housing , which includes major faces and intersection seams , has at least two female slots that project inward at { HEAD ~ an angle } that is non orthogonal to the major faces or { TAIL ~ intersection seams }
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 OTH REL REL REL REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL