US PATENT SUBCLASS 138 / 125
.~.~.~ Plastic

Current as of: June, 1999
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138 /   HD   PIPES AND TUBULAR CONDUITS

118  DF  FLEXIBLE {8}
123  DF  .~ Braided, interlaced, knitted or woven {1}
124  DF  .~.~ Distinct layers {1}
125.~.~.~ Plastic {1}
126  DF  .~.~.~.~> Rubber {1}

DEFINITION

Classification: 138/125

(under subclass 124) Device wherein at least one of said layers includes a plastic material.