A hand-held automatic pipetting apparatus operable with a standard glass or plastic pipet for aspirating and dispensing a predetermined amount of liquid, comprising a housing including a handle and a pipette adapter for holding a pipette, an electric motor carried by the housing, a peristaltic pump carried...http://www.google.fr/patents/US5509318?utm_source=gb-gplus-shareBrevet US5509318 - Memory Mopet
