ABGENE ACROS ALFA AESAR ARMAR CHEMICAL ASSAY DESIGNS AVOCADO BDH BIOLINE BRAND BRANSON ULTRASONIC CALBIOCHEM CARLO-ERBA CHEMICON CLP CONSORT CRUACHEM CYTOSKELETON EHRENSTORFER ELASTIN PRODUCTS COMPANY ELECTRON MICROSCOPY SCIENCES EPPENDORF FALCON (BD) FISHER GRANT / BOEKEL HAMILTON HARLAN SERA-LAB HELLMA ICN INNOGENEX JURO SUPPLY JUROSCIENCES LABSYSTEMS LANCASTER LAROVA BIOCHEMIE LATOXAN LIST BIOLOGICAL LABORATORIES MACHEREY NAGEL MATREYA MERCK METROHM METTLER MILIAN MPI NALGENE NOVABIOCHEM NOVAGEN NUNC OWL SEPARATION SYSTEMS OXFORD BIOMEDICAL RES. PANVERA PEPROTECH REACTOLAB RESEARCH ORGANICS SCHARLAU SCHLEICHER SCHUELL SEMADENI SOCOREX SYNGENE TREVIGEN TRIKONEX UVP VECTOR LABORATORIES VWR INTERNATIONAL SA WHATMAN