EXHIBIT 2.1 ASSET PURCHASE AGREEMENT THIS ASSET PURCHASE AGREEMENT (this "AGREEMENT") is made and entered into as of the 26th day of April, 2005, by and between IRIS INTERNATIONAL, INC., a Delaware corporation ("PARENT"), and Blitz 05-047 GmbH (future...Asset Purchase Agreement • June 9th, 2005 • Iris International Inc • Laboratory analytical instruments • California
