Patent classifications
C
CHEMISTRY; METALLURGY
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C12
BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
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C12C
BEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
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13/00
Brewing devices, not covered by a single group of C12C1/00 - C12C12/04
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