SCIENTIFIC APPARATUS AND INSTRUMENTS, NAMELY, POST-CHROMATOGRAPHIC VISUALIZATION DEVICES; COMPUTERIZED APPARATUS USED FOR THE ACQUISITION, THE ANALYSIS AND THE FILING OF CHROMATOGRAPHIC IMAGES; SAMPLE APPLICATORS; CHROMATOGRAPHY APPARATUS AND INSTRUMENTS, NAMELY, CHROMATOGRAPHIC COLUMNS SOLD EMPTY OR FILLED WITH MATERIAL FOR BIOASSAYS, CHROMATOGRAPHIC COLUMNS, CHROMATOGRAPHS FOR SAMPLE ANALYSIS, THIN LAYER CHROMATOGRAPHY APPARATUS FOR THE SEPARATION OF CHEMICALS, SULFUR AND CHLORINE ANALYSERS...