Hologic Inc., a provider of women's diagnostic imaging systems and general digital radiography systems, has been awarded a multiyear contract with the Defense Supply Center of Philadelphia.   . . .   Cambridge Display Technology (CDT) and GDesign Technology have announced a technology transfer agreement designed to advance the commercialization of light-emitting polymer (LEP) displays. CDT will convey relevant know-how on LEP materials performance and LEP device circuit models to GDesign.