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