Patent classifications
C
CHEMISTRY; METALLURGY
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C04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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C04B
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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32/00
Artificial stone not provided for in other groups of this subclass
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C04B32/005
Artificial stone obtained by melting at least part of the composition, e.g. metal
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