US PATENT SUBCLASS 219 / 145.31
.~.~.~ Partially


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

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
145.1  DF  .~ Weld rod structure {4}
145.23  DF  .~.~ Flux coated {2}
145.31.~.~.~ Partially


DEFINITION

Classification: 219/145.31

Partially:

(under subclass 145.23) Subject matter wherein only part of filler metal outer surface is covered.