prov:value
| - While the term "solvent is used throughout this application it is to be understood that, depending on the process and the infusible material being extracted, the term may apply not only to water but also to steam, ethyl and isopropyl alcohol, petroleum napthas, hexane, trichlorethylene, acetone, perchlorothylene, chlorinated hydrocarbons, and other solvents used in the various extraction processe
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