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DIFF Main Group
C10G 21/00

Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents (C10G17/00, C10G19/00 take precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents

CPC: Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents (C10G17/00, C10G19/00 take precedence)

Full Title

Full titles differ between systems:

IPC:

Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents

CPC:

Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents (C10G17/00, C10G19/00 take precedence)

Of 6 combined children, 4 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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  • C10G 21/003 CPC only CPC only
  • C10G 21/006 CPC only CPC only
  • C10G 21/28 Recovery of used solvent IPC+CPC Available in IPC and CPC
  • C10G 21/30 Controlling or regulating since 1980 IPC+CPC Available in IPC and CPC