Importance

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Abstract

Multi-channel metering device with displacement devices for displacing a plurality of air columns, a plurality of holders which comprise a shank for releasable connection to a pipette tip, a connector and a connecting channel extending from the free end of the shank to the connector, flexible pipes which connect the displacement devices to the connectors, a guide on which the holders may be displaced with shanks aligned parallel to one another and perpendicular to the guide, abutment surfaces on the faces of the holders facing one another, pins projecting from the holders, oriented perpendicular to the guide and the shanks, round chain links arranged on the pins of adjacent holders, a free space existing between the pins and the rounded portions of the round chain links when the abutment surfaces of the adjacent holders bear against one another, and a drive device which engages at least one of the two outer holders and by means of which the holders may be pushed apart and pushed together along the guide.

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First Claim