US PATENT SUBCLASS 29 / 888.076
.~.~.~ Including machining or angular cutting

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}
888.07  DF  .~.~ Piston ring or piston packing making {6}
888.076.~.~.~ Including machining or angular cutting

DEFINITION

Classification: 29/888.076

Including machining or angular cutting:

(under subclass 888.07) Process wherein the manufactured ring is (1) shaped by milling, broaching, or planing or (2) severed on a bias or in a manner other than transverse to the longitudinal axis of the ring.