US PATENT SUBCLASS 219 / 145.22
.~.~ Flux cored

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}
145.22.~.~ Flux cored

DEFINITION

Classification: 219/145.22

Flux cored:

(under subclass 145.1) Subject matter wherein a granular arc shielding material is encased by a sheath of filler metal.

(1) Note. Weld rods defined merely as cored rods are not classified herein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

146.3+, for composition of flux.