US PATENT SUBCLASS 138 / 94
.~ Laterally insertable

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

89  DF  WITH CLOSURES AND PLUGS {7}
94.~ Laterally insertable {1}
94.3  DF  .~.~> Line blinds {1}

DEFINITION

Classification: 138/94

(under subclass 89) Closures and plugs for the inside opening of a pipe which are insertable through a lateral opening in the pipe.