US PATENT SUBCLASS 44 / 320
.~ Silicon containing

Current as of: June, 1999
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44 /   HD   FUEL AND RELATED COMPOSITIONS

300  DF  LIQUID FUELS (EXCLUDING FUELS THAT ARE EXCLUSIVELY MIXTURES OF LIQUID HYDROCARBONS) {31}
320.~ Silicon containing

DEFINITION

Classification: 44/320

Silicon containing:

(under subclass 300) Compositions which contain elemental silicon or a silicon compound.