US PATENT SUBCLASS 138 / 109
.~ With end structure


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

103  DF  COMBINED {6}
109.~ With end structure


DEFINITION

Classification: 138/109

(under subclass 103) Device having structure at an end portion thereof which is not other where classifiable

SEE OR SEARCH THIS CLASS, SUBCLASS:

89+, for a pipe with a closure.

SEE OR SEARCH CLASS

220, Receptacles,

600+, for a pipe having at least one closed end.