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