US PATENT SUBCLASS 201 / 18
UTILIZING APPARATUS OF PARTICULAR COMPOSITION

Current as of: June, 1999
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201 /   HD   DISTILLATION: PROCESSES, THERMOLYTIC

18UTILIZING APPARATUS OF PARTICULAR COMPOSITION

DEFINITION

Classification: 201/18

(under the class definition) Processes directed to using structures having a specific composition, (e.g., a cast iron sole plate, etc.).

SEE OR SEARCH CLASS

203, Distillation: Processes, Separatory,

86, for a process of distilling directed to the use of an apparatus or element of specific composition.

264, Plastic and Nonmetallic Article Shaping or Treating: Processes,

30, for forming or repairing furnace linings and see "Search Class" thereunder for related fields of search. 266, Metallurgical Apparatus,

280+, for the lining construction for metallurgical receptacles.

373, Industrial Electric Heating Furnaces,

137, 155 and 164 for an electric furnace having a lining of a specific composition.

501, Compositions: Ceramic,

94+, for refractory compositions useful in making refractory linings.