EXHIBIT 4.12 This Convertible Debenture and Warrant Purchaser Agreement (the "Agreement"), dated March 31, 1998, by and between QUADRANT INTERNATIONAL INC., a Pennsylvania corporation (the "Company"), and each of the purchasers who are signatories on...Convertible Debenture and Warrant Purchaser Agreement • April 28th, 1999 • Divicore Inc • Pennsylvania
