Patent classifications
A
HUMAN NECESSITIES
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A01
AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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A01B
SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
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A01B29/04
with non-smooth surface formed of rotatably-mounted rings or discs or with projections or ribs on the roller body; Land packers
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A01B29/046
the soil-pressing body being a helical coil
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