US PATENT SUBCLASS 219 / 160
.~.~ Mandrels (e.g., anvil)

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

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
158  DF  .~ Work holders {3}
160.~.~ Mandrels (e.g., anvil)

DEFINITION

Classification: 219/160

(under subclass 158) Subject matter having a mandrel.