1 EXHIBIT 1.3 FIRST AMENDMENT TO THE WARRANT AGREEMENT FIRST AMENDMENT TO THE WARRANT AGREEMENT, dated as of July 24, 1997, between TARGETED GENETICS CORPORATION, a Washington corporation (the "Company"), and CHASEMELLON SHAREHOLDER SERVICES, as...Warrant Agreement • July 29th, 1997 • Targeted Genetics Corp /Wa/ • Biological products, (no disgnostic substances) • Washington
