TRIOVING VINGCARD SYSTEM
Microprocessor Accessor Control System for Surveillance of Locks, Automatic Opening of Doors and Punching of Key Cards for Locks and Structural Parts Thereof and Electronic Computer Systems and Parts Thereof and in Particular Computer Systems for Designating Hotel Room Status, for Registering and Controlling Admission to Rooms and Buildings, and for Hotel Front Office Computerized System for Booking, Credit, Billing and the Like
Cancelled · December 19, 1980 · 73290441 ·