CPC Subgroup
C01B 17/62 Methods of preparing sulfites in general (particular individual sulfites, see the relevant groups of subclasses C01B - C01G, according to the cation)
Full Title
Sulfur; Compounds thereof > Methods of preparing sulfites in general (particular individual sulfites, see the relevant groups of subclasses C01B - C01G, according to the cation)
1 direct subcode
Child Classifications
Navigate with arrow keys, Enter to open