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Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised
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CPC
COOPERATIVE PATENT CLASSIFICATION
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DISTILLATION OR RECTIFICATION OF FERMENTED SOLUTIONS; RECOVERY OF BY-PRODUCTS; DENATURING OF, OR DENATURED, ALCOHOL [2013‑01]
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Recovery of by-products [2013‑01]
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of carbon dioxide [2013‑01]
C12F 3/04
. .
Recovery of volatile fermentation products from carbon dioxide [2013‑01]
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from beer and wine (C12F 3/02 takes precedence; removal of yeast C12G 1/08) [2013‑01]
C12F 3/08
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Recovery of alcohol from press residues or other waste material (from carbon dioxide C12F 3/04) [2013‑01]
C12F 3/10
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from distillery slops [2013‑01]
C12F 5/00
Preparation of denatured alcohol [2013‑01]
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Last Modified: 10/10/2013