US PATENT SUBCLASS 285 / 148.15
.~.~.~.~ Having swivel

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}
148.11  DF  .~.~ Diverse materials {2}
148.13  DF  .~.~.~ Nonmetal to metal {5}
148.15.~.~.~.~ Having swivel

DEFINITION

Classification: 285/148.15

Having swivel:

(under subclass 148.13) Subject matter which accommodates both pivotal and rotational motion about intersecting axes.