The California Lock Staple Cutting System, also known as CAL-STAP, is a high-security staple system developed by DARPA as an anti-attachment barrier for aircraft. The system consists of a set of Locks, Staple Gun, and a master key with combinations that allow removal of staples from aircraft seats or luggage locks. The following is the patent file for the US Patent US7878693 for CAL-STAP Locks. It was registered for the USPTO on 12 March 1990. The original patent was registered with the USPTO on 12 November 1988.
William E. Parsons, Jr. of Rochester, New York. "Method of Adhering Styptic Staples to Secure Locks". US Patent 5,000,000. (USPTO). . . .Locks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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