A hard cover product having an outer liner attached to a pair of sheet members disposed in spaced-apart relation to define a gap. One of the hard sheet members defines a receiving zone that receives a security tag. An inner liner attaches overlying the pair of hard sheet members and concealing the security...http://www.google.fr/patents/US7602300?utm_source=gb-gplus-shareBrevet US7602300 - Hard cover product with spine-disposed concealed security device
Hard cover product with spine-disposed concealed security device
