Patent classifications
A
HUMAN NECESSITIES
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A01
AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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A01C
PLANTING; SOWING; FERTILISING
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17/00
Fertilisers or seeders with centrifugal wheels
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A01C17/006
Regulating or dosing devices
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A01C17/008
Devices controlling the quantity or the distribution pattern
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