Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
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49/00
Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
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C07C49/385
Saturated compounds containing a keto group being part of a ring
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C07C49/423
a keto group being part of a condensed ring system
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C07C49/433
the condensed ring system containing seven carbon atoms
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