PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • od and apparatus for monitoring railway defectsUS5987979Nov 30, 1998Nov 23, 1999Cairo Systems, Inc.Method and apparatus for detecting railtrack failures by comparing data from a plurality of railcarsUS6044698Nov 30, 1998Apr 4, 2000Cairo Systems, Inc.Method and apparatus including accelerometer and tilt sensor for detecting railway anomaliesUS6125311Dec 31, 1997Sep 26, 2000Maryland Technology Corpo
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com