194249 ⎘
Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation Microwaves
FORGERY PREVENTION STRUCTURE, FORGERY PREVENTION MEDIUM, AND METHOD FOR INSPECTING FORGERY PREVENTION STRUCTURE
#2Microwave reflectometry for physical inspections
#3Coded polymer substrates for banknote authentication
#4Use of radiofrequency wave absorbing markets for the authentication of security documents
#5Apparatus for chemical concentration determination using microwave spectroscopy
#6System and method for the authentication of physical documents
#7Information recording patch, printed sheet, and authenticity discrimination method therefor