(under the class definition) Subject matter relating to the analysis by electrical means of core samples which have been removed from the subsurface of the earth.
(1) Note. For a definition of subsurface as used in these definitions see the definitions of subclass 323 of the class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
323+, for this subject matter where the core sample is analyzed in situ in the earth.
SEE OR SEARCH CLASS
73, Measuring and Testing,
152.07, 152.09, and 152.11 for logging a formation by a core sample analysis and subclasses 152.23+ for a fluid flow
measuring or a fluid analysis in a borehole or drilling test combined with sampling wherein the measurement or the analysis is not made by purely electrical means or purely magnetic means. 175, Boring or Penetrating the Earth,
44, providing core position identification for core sample orientation.
