(under subclass 300) Subject matter in which earth subsurface materials are subjected to magnetic resonance measurement by using a well logging device to transport the components of the testing system to the location to be tested.
SEE OR SEARCH THIS CLASS, SUBCLASS:
346, for systems using magnetic means to determine the electrical characteristics of the subsurface.
SEE OR SEARCH CLASS
73, Measuring and Testing,
152.02+, for a process or an apparatus for well logging, per se, wherein the process or the apparatus is not purely electrical or purely magnetic.
