A
HUMAN NECESSITIES
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A01
AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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A01G
HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
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25/00
Watering gardens, fields, sports grounds or the like
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A01G25/165
Cyclic operations, timing systems, timing valves, impulse operations
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