| http://www.w3.org/ns/prov#value | - GPS receiverUS6044698 *30 Nov 19984 Apr 2000Cairo Systems, Inc.Method and apparatus including accelerometer and tilt sensor for detecting railway anomaliesUS6047017 *25 Jul 19974 Apr 2000Cahn; Charles R.Spread spectrum receiver with multi-path cancellationUS6055265 *24 Nov 199725 Apr 2000Hyundai Electronics Ind.
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