266 / | HD | METALLURGICAL APPARATUS |
114 | DF | HAVING MEANS FOR CONTACTING A SOLID METALLIFEROUS MATERIAL OR METAL OBJECT WITH A LIQUID {5} |
121 | .~ With heating means, e.g., flame contact {6} | |
122 | DF | .~.~> By means treating metalliferous materials, e.g., ores |
123 | DF | .~.~> By heating means adapted to be inserted into a hollow object |
124 | DF | .~.~> By means heating selected areas of an object {1} |
127 | DF | .~.~> Unitized heating and fluid contact means |
128 | DF | .~.~> By electric heating means {1} |
130 | DF | .~.~> Having bath for contacting the work with liquid {3} |