US PATENT SUBCLASS 285 / 290.4
.~.~.~ Having additional holding means

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

285.1  DF  MOLDED JOINT {11}
290.1  DF  .~ Composite pipe (ends) {3}
290.3  DF  .~.~ Interlocked with pipe end {1}
290.4.~.~.~ Having additional holding means

DEFINITION

Classification: 285/290.4

Having additional holding means:

(under subclass 290.3) Subject matter wherein the joint is held further by a means such as a bolt or clamp, etc.