US PATENT SUBCLASS 138 / 133
.~.~.~ Metal

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

118  DF  FLEXIBLE {8}
129  DF  .~ Spirally wound material {4}
132  DF  .~.~ Embedded {1}
133.~.~.~ Metal

DEFINITION

Classification: 138/133

(under subclass 132) Device comprising metal.