US PATENT SUBCLASS 219 / 61.7
.~.~ With cooling means

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

50  DF  METAL HEATING (E.G., RESISTANCE HEATING) {19}
59.1  DF  .~ Of cylinders (e.g., pipes and tubes) {14}
61.7.~.~ With cooling means

DEFINITION

Classification: 219/61.7

With cooling means:

(under subclass 59.1) Subject matter including means to maintain or lower the temperature of part or all of the welding apparatus or work.

SEE OR SEARCH THIS CLASS, SUBCLASS:

76.11, for deposition welding with cooling means.

86.31, for spot bonding electrode support with cooling means.

137.62, for consumable electrode gun with cooling means.