US PATENT SUBCLASS 137 / 329.04
.~.~.~.~.~ Valve heads


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

Internet Version by PATENTEC © 1999      Terms of Use



137 /   HD   FLUID HANDLING

315  DF  WITH REPAIR, TAPPING OR ASSEMBLY MEANS {6}
329  DF  .~ With provision of alternate wear parts {1}
329.01  DF  .~.~ Valve heads and/or seats {3}
329.02  DF  .~.~.~ Opposite duplicate surfaces of unitary structure {1}
329.03  DF  .~.~.~.~ Homogeneous material {1}
329.04.~.~.~.~.~ Valve heads


DEFINITION

Classification: 137/329.04

(under subclass 329.03) Devices relating to valve heads.