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Class Information
Number:
544/
Name:
Organic compounds -- part of the class 532-570 series
> Organic compounds (class 532, subclass 1)
Description:
Sub-classes under this class:
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Class Name
Patents
544/
Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1)
0
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