US PATENT SUBCLASS 73 / 49.5
.~ Pipe

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

37  DF  WITH FLUID PRESSURE {8}
49.5.~ Pipe {1}
49.6  DF  .~.~> With power-operated closure or seal

DEFINITION

Classification: 73/49.5

(under subclass 37) Subject matter for testing pipe.

SEE OR SEARCH THIS CLASS, SUBCLASS:

49.1, for testing for leakage of a pipe section.