An automatic system for analyzing specimens which have been selectively treated. The specimens are arranged in a plurality of specimen trays with each tray containing a plurality of specimens. Tray towers support a plurality of specimen trays. A work station selectively moves the trays one at a time...http://www.google.fr/patents/US4676951?utm_source=gb-gplus-shareBrevet US4676951 - Automatic specimen analyzing system
