A device which can reduce the workload on operators during replenishment and stocktaking of drugs stored in a drug dispenser. The drug dispenser has a memory for storing data on the initial number of drugs in each of the drug feeders, a processor for calculating the number of drugs currently remaining...http://www.google.de/patents/US6181982?utm_source=gb-gplus-sharePatent US6181982 - Drug dispenser and quantity input device
