US PATENT SUBCLASS 29 / 890.132
.~.~ Including metal shaping and diverse operation


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

Internet Version by PATENTEC © 1999      Terms of Use



29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
890.12  DF  .~ Valve or choke making {5}
890.132.~.~ Including metal shaping and diverse operation


DEFINITION

Classification: 29/890.132

Including metal shaping and diverse operation:

(under subclass 890.12) Process wherein the valve or choke is manufactured by the combined steps of (1) permanently altering the form, configuration, or contour of the workpiece or stock, with or without removal of material, together with (2) an unlike or different manufacturing step, which second step is distinct from the first step although the second step may also constitute another metal shaping operation.