The business record 1 wherein said initially colorless coatings comprise {TAIL ~ self contained coatings} of color formers and color developers in which {HEAD ~ either said color formers} or said color developers are contained in pressure rupturable microcapsules 
in
The business record 1 wherein said initially colorless coatings comprise { TAIL ~ self contained coatings } of color formers and color developers in which { HEAD ~ either said color formers } or said color developers are contained in pressure rupturable microcapsules
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH REL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH