US PATENT SUBCLASS 166 / 902
FOR INHIBITING CORROSION OR COATING

Current as of: June, 1999
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166 /   HD   WELLS

902FOR INHIBITING CORROSION OR COATING

DEFINITION

Classification: 166/902

FOR INHIBITING CORROSION OR COATING:

Subject matter specialized to preventing or alleviating the effects of either (a) corrosion or (b) formation of a coating material on well equipment.

SEE OR SEARCH THIS CLASS, SUBCLASS:

170+, for brushing, scraping, cutting or punching type well cleaners.

304, for dissolving or preventing formation of a solid oil deposit.

311+, for cleaning or unloading well.