GILSON

FRACTION COLLECTORS AND PARTS THEREOF; ULTRAVIOLET ABSORPTION METERS; LABORATORY APPARATUS FOR TRANSFERRING LIQUID SAMPLES; LIQUID CHROMATOGRAPHY INSTRUMENTS AND COMPUTER PROGRAMS FOR ANALYZING SEPARATION OF VARIOUS BIOLOGICAL AND INDUSTRIAL MATERIALS; LABORATORY APPARATUS FOR AUTOMATIC PREPARATIONS OF LIQUID SAMPLES

[ APPARATUS FOR MEASURING INDICATING AND RECORDING ELECTRICAL CURRENTS IN ORGANS OF LABORATORY ANIMALS FOR THE PURPOSE OF PHYSIOLOGICAL RESEARCH ]