US PATENT SUBCLASS 29 / 888.43
.~.~.~ Valve tappet making

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
888  DF  .~ Prime mover or fluid pump making {12}
888.4  DF  .~.~ Poppet or I.C. engine valve or valve seat making {6}
888.43.~.~.~ Valve tappet making

DEFINITION

Classification: 29/888.43

Valve tappet making:

(under subclass 888.4) Process wherein the manufactured article is (1) a lever or oscillating member moved by a cam and intended to tap or touch for purpose of operation of a valve or part thereof or (2) a part especially adapted for (1) which is not elsewhere classified.