Top IPC subclasses
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1
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B28B
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6
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shaping clay or other ceramic compositions, slag or mixtures containing cementitious material, e.g.
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2
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A01G
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5
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Horticulture; cultivation of vegetables, flowers, rice, fruit, vines, hops, or seaweed; forestry; watering
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3
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C04B
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1
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Lime; magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone; ceramics; refractories; treatment of natural stone
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