EXHIBIT 4.3 THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 OR ANY STATE SECURITIES LAWS. THEY MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED OR OTHERWISE TRANSFERRED IN THE ABSENCE OF A REGISTRATION STATEMENT IN...Boston Life Sciences Inc /De • June 29th, 2000 • Pharmaceutical preparations • Delaware
Company FiledJune 29th, 2000 Industry Jurisdiction