Exhibit 4.1 SECURITIES PURCHASE AGREEMENT SECURITIES PURCHASE AGREEMENT (this "Agreement"), dated as of July 5, 2006, by and among Avitar Inc., a Delaware corporation, with headquarters located at 65 Dan Road, Canton, MA 02021 (the "Company"), and...Securities Purchase Agreement • July 11th, 2006 • Avitar Inc /De/ • Orthopedic, prosthetic & surgical appliances & supplies • New York
SECURITIES PURCHASE AGREEMENT SECURITIES PURCHASE AGREEMENT (this Agreement), dated as of March 23, 2006, by and among Palomar Enterprises, Inc., a Nevada corporation, with headquarters located at 1801 N. Carson Street, Suite 212-3018, Carson City, NV...Securities Purchase Agreement • March 29th, 2006 • Palomar Enterprises Inc • Real estate • New York
EXHIBIT 10(cc) SECURITIES PURCHASE AGREEMENT SECURITIES PURCHASE AGREEMENT (the "Agreement"), dated as of May 4, 2004, by and among Cel-Sci Corporation, a Colorado corporation, with headquarters located at 8229 Boone Blvd., Suite 802, Vienna Virginia...Securities Purchase Agreement • May 5th, 2004 • Cel Sci Corp • Biological products, (no disgnostic substances) • New York