GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS (detecting or locating foreign bodies for diagnostic, surgical or person-identification purposes Fulltext... Hierarchy... Expanded...A61B; means for indicating the location of accidentally buried, e.g. snow-buried, persons Fulltext... Hierarchy... Expanded...A63B 29/02; investigating or analysing earth materials by determining their chemical or physical properties Fulltext... Hierarchy... Expanded...G01N; measuring electric or magnetic variables in general, other than direction or magnitude of the earth's field Fulltext... Hierarchy... Expanded...G01R; electronic or nuclear magnetic resonance arrangements in general Fulltext... Hierarchy... Expanded...G01R 33/20; radar, sonar or analogous methods in general, detecting masses or objects involving these methods Fulltext... Hierarchy... Expanded...G01S) |