An improved pipette device for removing and transferring a plurality of liquid samples to and from a multi-well tray is disclosed. The pipette device comprises the housing having an elongated plate defining a first chamber therein. A patterned array of collector conduits are joined to the plate such...http://www.google.com/patents/US4468974?utm_source=gb-gplus-sharePatent US4468974 - Pipette sampler and related apparatus
