| 266 / | HD | METALLURGICAL APPARATUS |
| 114 | DF | HAVING MEANS FOR CONTACTING A SOLID METALLIFEROUS MATERIAL OR METAL OBJECT WITH A LIQUID {5} |
| 121 | DF | .~ With heating means, e.g., flame contact {6} |
| 124 | DF | .~.~ By means heating selected areas of an object {1} |
| 125 | ![]() | .~.~.~ By means specialized to heat an article having an irregular contour (e.g., cams, gears) {1} |
| 126 | DF | .~.~.~.~> By heating means configured to fit between adjacent gear teeth |