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