EXHIBIT 10.2 ENVIROGEN, INC. REGISTRATION RIGHTS AGREEMENT REGISTRATION RIGHTS AGREEMENT, dated as of April 10, 1997, among the investors listed on Schedule I hereto (the "Investors") and Envirogen, Inc., a Delaware corporation (the "Company"). R E C...Registration Rights Agreement • April 23rd, 1997 • Envirogen Inc • Hazardous waste management • New York
