Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Identified organic electron acceptor other than phenolic resin
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Method for producing a reversible thermosensitive recording mate
Method of separating electrophotographic carrier...
Reversible thermosensitive recording material and method for pro
Reversible thermosensitive recording medium, card, label,...
Reversible thermosensitive recording medium, method of...
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