US PATENT SUBCLASS 175 / 46
.~ Signaling or indicating condition of cutting in cuttings retainer

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


175 /   HD   BORING OR PENETRATING THE EARTH

40  DF  WITH SIGNALING, INDICATING, TESTING OR MEASURING {8}
46.~ Signaling or indicating condition of cutting in cuttings retainer

DEFINITION

Classification: 175/46

(under subclass 40) Process or apparatus comprising a cuttings retainer and a step or means for indicating a condition of cuttings within or entering said cuttings retainer.