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Plate inimitable to the use of the papers fiduciary or the like, made up of frames which are variable according to the details of an image which, on the tests, which is invisible, and means to detect immediately the counterfeiting
Plate inimitable to the use of the papers fiduciary or the like, made up of frames which are variable according to the details of an image which, on the tests, which is invisible, and means to detect immediately the counterfeiting