US PATENT SUBCLASS 219 / 121.29
.~.~.~.~ Swept or scanned

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

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
121.11  DF  .~ By arc {16}
121.12  DF  .~.~ Using electron beam {12}
121.28  DF  .~.~.~ Position control {2}
121.29.~.~.~.~ Swept or scanned

DEFINITION

Classification: 219/121.29

Swept or scanned:

(under subclass 121.28) Subject matter wherein the beam of charged particles is continuously deflected in opposite directions by electrostatic or electromagnetic means.