US PATENT SUBCLASS 166 / 213
.~ Bowed anchor means

Current as of: June, 1999
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166 /   HD   WELLS

206  DF  EXPANSIBLE ANCHOR OR CASING {8}
213.~ Bowed anchor means

DEFINITION

Classification: 166/213

(under subclass 206) Devices in which the movable means is secured to a central support at each end and bowed outwardly intermediate the ends.

SEE OR SEARCH THIS CLASS, SUBCLASS:

241.1, for devices of similar form which are not jammed against the wall surrounding conduit.