US PATENT SUBCLASS 138 / 102
.~ With base

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

100  DF  BREAKJOINT {2}
102.~ With base

DEFINITION

Classification: 138/102

(under subclass 100) Device wherein the pipe comprises base sections, joined to adjacent base sections, the joints of said sections being staggered in relation to joints of other sections which make up the pipe wall or parts thereof.