Rothermel William Fletcher, Walker James William, Matthews John Paul, Coulter Wallace Henry: Cassette for supporting test tubes of different diameters and/or lengths. Coulter Electronics, HIBNICK Gerald R, April 25, 1985: WO/1985/001642

A stackable cassette or rack (10) for supporting a plurality of sealed sample containers (12, 14) having different diameters and/or lengths and for transporting the same to a testing station (90) of a hematology analyzer device. The cassette comprises a body (16) having a top (18) and a bottom (20) ...