US PATENT SUBCLASS 285 / 148.28
.~.~ Having bolted or screwed flange or clamp

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

144.1  DF  SERIAL,RELATIVELY MOVABLE PORTIONS {4}
148.1  DF  .~ Serial diverse single flow path or line {10}
148.28.~.~ Having bolted or screwed flange or clamp

DEFINITION

Classification: 285/148.28

Having bolted or screwed flange or clamp:

(under subclass 148.1) Subject matter including a gripping device or protruding rim used in conjunction with a threaded means to secure the joint.