US PATENT SUBCLASS 219 / 126
.~.~.~ Vertical work (e.g., horizontal seam in vertical wall)

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}
125.1  DF  .~.~ With predetermined welding operation {3}
126.~.~.~ Vertical work (e.g., horizontal seam in vertical wall)

DEFINITION

Classification: 219/126

(under subclass 125.1) Subject matter in which the work is vertical.

(1) Note. The bonding operation may take place, for example, at a horizontal or a vertical seam of a vertical wall of a metal tank.