US PATENT SUBCLASS 110 / 182.5
TUYERES

Current as of: June, 1999
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110 /   HD   FURNACES

182.5TUYERES {1}
182.6  DF  .~> Forge

DEFINITION

Classification: 110/182.5

(under the class definition) Subject matter relating to conduits for feeding air to furnaces.

SEE OR SEARCH THIS CLASS, SUBCLASS:

297+, for feeding of air to a firebox.

SEE OR SEARCH CLASS

122, Liquid Heaters and Vaporizers,

6.6+, for tuyeres in boilers.

266, Metallurgical Apparatus, 186+, 218+, and 265+ for tuyeres used in a metallurgical furnace.