1 EXHIBIT 10.20 STOCK PLEDGE AGREEMENT This STOCK PLEDGE AGREEMENT dated as of September 16, 1997 (the "Agreement"), by and between Codinvest Limited, a British Virgin Islands corporation having an address of Road Town, P.O. Box 3126, Tortola, British...Stock Pledge Agreement • September 29th, 1997 • Atc Communications Group Inc • Services-business services, nec • Texas
