C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 11/20 (2006.01) B41M 3/14 (2006.01)
Patent
CA 2122862
Abstract of the disclosure NEW INDELIBLE INK FORMULATION A stable indelible colored ink composition for invalidating bank notes or similar valuables by staining them permanently, comprises at least one of di- or tri- phenylguanidine.
Bebbington Samuel T.
Lint Greg Van
Gowling Lafleur Henderson Llp
Imperial Chemical Industries Plc
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