PLEDGE AGREEMENT PLEDGE AGREEMENT dated as of September 24, 1998 by and between Owen A. Dempsey, an individual with an address at 21 Harris Street, Brookline, Massachusetts 02146 (the "Pledgor"), in favor of Endogen, Inc., a Massachusetts corporation,...Pledge Agreement • January 14th, 1999 • Endogen Inc • In vitro & in vivo diagnostic substances • Massachusetts
