US PATENT SUBCLASS 219 / 57
.~.~ Butt bonding (e.g., welding)

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

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
56  DF  .~ Wire, rod, or bar bonding {3}
57.~.~ Butt bonding (e.g., welding)

DEFINITION

Classification: 219/57

(under subclass 56) Subject matter relating to butt bonding.

SEE OR SEARCH THIS CLASS, SUBCLASS:

101, for miscellaneous butt bonding.