.~ Having means analyzing composition of exhaust gas
DEFINITION
Classification: 60/276
(under subclass 272) Apparatus including structure analyzing the chemical composition of the exhaust gas and exerting a control responsive to the determined value or giving an indication of the determined value.
SEE OR SEARCH CLASS
73, Measuring and Testing,
23+, for a gas analyzer, per se.
200, Electricity: Circuit Makers and Breakers,
61.03, for a smoke responsive switch. 324, Electricity: Measuring and Testing, appropriate subclass for apparatus testing the electrical properties of gases.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,
83, for gas analyzers.
431, Combustion,
76, for a fuel burner controlled by a means analyzing the composition of its combustion products.
