A system is provided for inventorying a plurality of items in a supply. The items include a plurality of subgroupings of similar "item types" which are distributed in a selected pattern among a plurality of known locations. The inventory process is done by a plurality of known inventory entities. The...http://www.google.com.hk/patents/US5334822?utm_source=gb-gplus-share專利 US5334822 - Method and system for inventoring a distributed plurality of items on a supply
