US PATENT SUBCLASS 285 / 181
.~ Serially connected, adjustable

Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

179  DF  ELBOW {5}
181.~ Serially connected, adjustable

DEFINITION

Classification: 285/181

(under subclass 179) Subject matter including adjustable means serially connecting two elbows or two parts which form an elbow.

SEE OR SEARCH THIS CLASS, SUBCLASS:

144.1+, for plural movable joints.

184+, for an adjustable angle coupling.

223+, for a flexible joint between rigid members.

261+, for a ball and socket joint.

272+, for a swivel joint. 283, for a detachable hinge coupling.