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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C01B17/46
Compounds containing sulfur, halogen, hydrogen, and oxygen
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C01B17/463
Fluorosulfonic acid (FSO3H)
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