US PATENT SUBCLASS 60 / 274
.~.~ Anti-pollution

Current as of: June, 1999
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60 /   HD   POWER PLANTS

272  DF  INTERNAL COMBUSTION ENGINE WITH TREATMENT OR HANDLING OF EXHAUST GAS {18}
273  DF  .~ Methods {1}
274.~.~ Anti-pollution

DEFINITION

Classification: 60/274

(under subclass 273) Processes in which the handling or treatment serves to remove or destroy harmful materials in the exhaust gas.