US PATENT SUBCLASS 285 / 300
.~.~ Internal sleeve

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

Internet Version by PATENTEC © 1999      Terms of Use


285 /   HD   PIPE JOINTS OR COUPLINGS

298  DF  VARIABLE LENGTH {3}
299  DF  .~ With bellows seal {2}
300.~.~ Internal sleeve

DEFINITION

Classification: 285/300

(under subclass 299) Subject matter including a sleeve within the bellows.