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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1/00
Fertilisers made from animal corpses, or parts thereof
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C05F1/005
from meat-wastes or from other wastes of animal origin, e.g. skins, hair, hoofs, feathers, blood
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