{HEAD ~ The flap} 2, wherein the cassette supporting means includes a pair of ribs projecting from an interior wall of the cassette, and {TAIL ~ said mounting end} is supported by one of the ribs and said tab portion is supported by the other of said ribs 
wherein
{ HEAD ~ The flap } 2 , wherein the cassette supporting means includes a pair of ribs projecting from an interior wall of the cassette , and { TAIL ~ said mounting end } is supported by one of the ribs and said tab portion is supported by the other of said ribs
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL 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 TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH