US PATENT SUBCLASS 34 / 83
.~.~ Jet devices

Current as of: June, 1999
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34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

523  DF  APPARATUS {40}
72  DF  .~ With means to treat gas or vapor {3}
83.~.~ Jet devices {1}
84  DF  .~.~.~> Gas or vapor circulators or flow promotors

DEFINITION

Classification: 34/83

(under subclass 72) Apparatus in which means are provided for injecting into the gas or vapor some treating material.

(1) Note. This subclass includes means for injecting steam or water for fire extinguishing purposes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

74, and 75.

SEE OR SEARCH CLASS

261, Gas and Liquid Contact Apparatus, appropriate subclasses, particularly

76, 78.1.