Patent classifications
C
CHEMISTRY; METALLURGY
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C01
INORGANIC CHEMISTRY
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C01B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF;; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
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C01B32/914
Carbides of single elements
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C01B32/963
Preparation from compounds containing silicon
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C01B32/984
Preparation from elemental silicon
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