REGISTRATION RIGHTS AGREEMENT This Registration Rights Agreement (this "Agreement") is made and entered into as of February 24, 2003, by and among Aphton Corporation, a Delaware corporation (the "Company"), and Mainfield Enterprises Inc....Registration Rights Agreement • March 31st, 2003 • Aphton Corp • Biological products, (no disgnostic substances) • New York
WARRANTSecurities Agreement • March 31st, 2003 • Aphton Corp • Biological products, (no disgnostic substances)
DEBENTURE PURCHASE AGREEMENT,Debenture Purchase Agreement • March 31st, 2003 • Aphton Corp • Biological products, (no disgnostic substances) • New York
