Microparticle taggant systems

A microparticle taggant having two or more distinguishable marker layers corresponding to a predetermined numeric code. The plurality of particles comprises a plurality of microparticle sets of at least one microparticle, each microparticle set is characterized by a specific marker layer combination...

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Bibliographic Details
Main Author HUNT DANIEL R
Format Patent
LanguageEnglish
Published 19.09.2002
Edition7
Subjects
ADVERTISING
CALCULATING
COMPUTING
COUNTING
CRYPTOGRAPHY
DISPLAY
DISPLAYING
EDUCATION
HANDLING RECORD CARRIERS
LABELS OR NAME-PLATES
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
SEALS
SIGNS
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