| http://www.w3.org/ns/prov#value | - This application is a continuation-in-part of U.S. patent application, Serial No. 377,023, filed August 28, 1953 (abandoned), and the pending U.S. patent application, Serial No. 513,261, filed June 6, 1955, now Patent No. 2,789,731, issued April 23, 1957.
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