US PATENT SUBCLASS 285 / 135.5
.~.~.~ Secured by bolt

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

134.1  DF  U-TYPE (E.G., RETURN BEND) {1}
135.1  DF  .~ Detachable {2}
135.4  DF  .~.~ Having coupling sleeve {1}
135.5.~.~.~ Secured by bolt

DEFINITION

Classification: 285/135.5

Secured by bolt:

(under subclass 135.4) Subject matter wherein the sleeve, itself, is secured by at least one element having a threaded stem.