US PATENT SUBCLASS 219 / 153
.~.~ Bending or twisting

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
149  DF  .~ With forging or shaping (e.g., of powder) {3}
153.~.~ Bending or twisting

DEFINITION

Classification: 219/153

(under subclass 149) Subject matter in which the forging or shaping is bending or twisting.