42 Advisory services relating to computer software used for printing; Programming of computers for the printing of bar codes; Computer programming services for data processing; Data encryption services; Technical research in the field of printing, namely technical measuring and testing laboratory; Technical research in the field of printing, namely conducting technical tests and checks; Technical research of measuring in the field of printing; Technical surveying; Calibration of testing of functions of measuring apparatus, and of machines for the manufacturing, personalizing, programming, encoding, numbering, editing, inscribing and packaging of data carriers