US PATENT SUBCLASS 175 / 45
.~ Tool position direction or inclination measuring or indicating within the bore

Current as of: June, 1999
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175 /   HD   BORING OR PENETRATING THE EARTH

40  DF  WITH SIGNALING, INDICATING, TESTING OR MEASURING {8}
45.~ Tool position direction or inclination measuring or indicating within the bore

DEFINITION

Classification: 175/45

(under subclass 40) Subject matter comprising a step or means for indicating the position, direction or inclination of a boring tool in a borehole with relation to geos:graphical direction, a characteristic of the borehole or some other preselected point of reference.

SEE OR SEARCH THIS CLASS, SUBCLASS:

44, for the process or apparatus for indicating the position of a core sample while in situ for the purpose of orientation.