Disappearing Ink is Not Just for Spies

Name: Disappearing Ink is Not Just for Spies
Uploaded: 2014-05-28T08:05:42+00:00
Duration: 1 min 34 s
Channel: Danielgeorge
Description: Disappearing ink is a substance that is made from a number of chemicals with the purpose of having the ink visible to the eye for only a certain period of time. Log on www.rapidsupplies.com/disappearing-ink--not-just-for-spies.aspx

Danielgeorge

Disappearing ink is a substance that is made from a number of chemicals with the purpose of having the ink visible to the eye for only a certain period of time. Log on www.rapidsupplies.com/disappearing-ink--not-just-for-spies.aspx

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