US PATENT SUBCLASS 208 / 307
.~.~ Silicon or carbon containing treating agent

Current as of: June, 1999
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208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

177  DF  REFINING {23}
299  DF  .~ With solid catalyst or absorbent {8}
307.~.~ Silicon or carbon containing treating agent

DEFINITION

Classification: 208/307

(under subclass 299) Processes wherein a silicon containing compound or a free carbon containing material is employed.