US PATENT SUBCLASS 138 / 162
.~.~ Tongue and slot

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


138 /   HD   PIPES AND TUBULAR CONDUITS

156  DF  LONGITUDINALLY SEAMED {8}
157  DF  .~ Sectional {3}
162.~.~ Tongue and slot

DEFINITION

Classification: 138/162

(under subclass 157) Device wherein there is a tongue in one section which passes through a slot in an adjacent section to secure said sections together.