US PATENT SUBCLASS 348 / 84
.~.~ Pipeline

Current as of: June, 1999
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348 /   HD   TELEVISION

61  DF  SPECIAL APPLICATIONS {15}
82  DF  .~ Hazardous or inaccessible {3}
84.~.~ Pipeline

DEFINITION

Classification: 348/84

Pipeline:

(under subclass 82) Subject matter wherein the inaccessible environment is a tubular conduit.