US PATENT SUBCLASS 285 / 121.2
.~.~ Revolvable and telescoping

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

120.1  DF  HAVING PLURAL INDEPENDENT PATHS {4}
121.1  DF  .~ Allowing relative motion of pipes {3}
121.2.~.~ Revolvable and telescoping

DEFINITION

Classification: 285/121.2

Revolvable and telescoping:

(under subclass 121.1) Subject matter comprising a coupling for a rotatable (by at least 360 degrees), sectional conduit of which said sections are interfitted for relative axial movement.