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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C01B33/08
Compounds containing halogen
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C01B33/10
Compounds containing silicon, fluorine, and other elements
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C01B33/103
Fluosilicic acid; Salts thereof
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