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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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2204/00
Structure or properties of graphene
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C01B2204/20
Graphene characterized by its properties
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C01B2204/30
Purity
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