Data carrier with a module and a hologram
Data carrier with an optically variable element
Data carrier with an optically variable element
Data carrier with an optically variable element
Data-written medium
Diffractive anti-counterfeiting tag with naked-eye...
Document having a security feature and method of determining the
Document of value
Document protection methods and products
Document with a moire-generating raster structure
Document with an optical diffraction safety element
Document with an unforgeable surface
Document with invisible encoded information and method of...
Documents having a revealable concealed identifier and the metho