EXHIBIT 4.12 BRIDGE FINANCING PURCHASE AGREEMENT BRIDGE FINANCING PURCHASE AGREEMENT, made as of June 16, 1997, by and between Coutts & Co. AG, a Swiss corporation, acting as agent for certain non-U.S. persons, with a principal place of business at...Bridge Financing Purchase Agreement • July 3rd, 1997 • Dynagen Inc • In vitro & in vivo diagnostic substances • Massachusetts
