US PATENT SUBCLASS 251 / 308
.~.~ Head and stem connections

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

Internet Version by PATENTEC © 1999      Terms of Use


251 /   HD   VALVES AND VALVE ACTUATION

304  DF  ROTARY VALVES {5}
305  DF  .~ Butterfly {2}
308.~.~ Head and stem connections

DEFINITION

Classification: 251/308

(under subclass 305) Devices providing the means for attaching the valve stem, or pivot, to the valve head.