US PATENT SUBCLASS 166 / 242.4
.~ Corrosion prevention or deterring

Current as of: June, 1999
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166 /   HD   WELLS

242.1  DF  CONDUIT WALL OR SPECIFIC CONDUIT END STRUCTURE {7}
242.4.~ Corrosion prevention or deterring

DEFINITION

Classification: 166/242.4

Corrosion prevention or deterring:

(under subclass 242.1) Conduit wall structure comprising specific wall structure for averting or slowing deterioration due to reaction with water, pollutants, or salt spray.

SEE OR SEARCH THIS CLASS, SUBCLASS:

250.05, for a method of scale or corrosion determination.

250.11, for a method of locating coupon holders.

902, for corrosion inhibiting.

SEE OR SEARCH CLASS

138, Pipes and Tubular Conduits, Digest 6 for corrosion prevention.