Archive for the 'Art And Entertainment' Category
Use of Invisible Ink Pen, and Security Ink
Posted on July 11, 2009 - Filed Under Art And Entertainment | Leave a Comment
Groshan Fabiola asked: Invisible ink pens ink that is invisible. Invisible ink is a substance used in the indenture, or can be invisible to the application, or shortly thereafter can be made visible by other means. Besides being used in the form of steganography and espionage Areuse invisible ink pens on property marking, AntiCounterfeiting, hand [...]