electronic lock boxes for use in real estate; coded memory tokens containing programming for accessing electronic lock boxes; memory token readers; access control system comprised of electronic lock boxes, coded memory tokens containing programs for accessing electronic lock boxes and memory token readers

Software for real estate association management; and software for real estate multiple listing services

Electronic lock box; smart card for use in an electronic lock box; smart card reader; internet based service of maintaining data relating to electronic lock boxes; system of electronic lock boxes, smart cards, smart card reader, and internet based system of maintaining data relating to the lock boxes and smart cards