From TM-XML-Wiki

Code indicating the kind of data manipulation operation performed on the data element

operationCode (Attribute)
Type:	OperationCodeType
Use:	optional
Defined in:	AppellantType ApplicantType ClaimantType ClassificationTermType LicenseeType RepresentativeType RespondentType TermSynonymRelationType TermTranslationRelationType TradeMarkType

Translation

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Implementation-Specific