75465773
Apr 9, 1998
Oct 30, 2001
transponders; security tagging systems consisting of transponders designed to be read by means of a dedicated scanner, eye legible marking systems and covertly applied physical marking systems designed to be read by microscope; security devices, namely, security recognition and identification systems for documents, objects, vehicles and persons comprised of computer hardware, software and electronic sensors; storage and retrieval systems comprised of custom written database software designed for storage and retrieval of data through multiple access path
Electrical and Scientific Apparatus