US PATENT SUBCLASS 138 / 93
.~ Inflatable


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

89  DF  WITH CLOSURES AND PLUGS {7}
93.~ Inflatable


DEFINITION

Classification: 138/93

(under subclass 89) Plugs for pipes having an inflatable member to seal against inside of the pipe opening.