Patent classifications
C
CHEMISTRY; METALLURGY
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C05
FERTILISERS; MANUFACTURE THEREOF
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C05F
ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
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3/00
Fertilisers from human or animal excrements, e.g. manure
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C05F3/06
Apparatus for the manufacture
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