Attribute	Description
ucid, mxw-id, load-source	See Common XML Attributes. Note: If on the child document-id, the attribute format="original" has been added, the ucid attribute is not required.
linkage-type	An indicator of priority relation, this single character identifies priorities as division, continuation, or addition patents.

priority-claims/priority-claim/document-id

...

Element	INID	Description
country	33	The country is represented by a standard 2-character code based on WIPO ST.3. In the case of WO publications, the country is the authority where the application was filed.
doc-number	31	`doc-number` is provided in DOCDB-normalized format. Priority format is the same as application number format (see application-reference).
kind	34	Kind code of applications comes from DOCDB (A=patent; , U=utility; , P=provision; , W= PCT; , F=design; , T=translation).
date	32	Date of filing (YYYYMMDD).
lang		Filing language, 2-character code based on ISO 639-2. The default value is "XX" if no language information is provided by the data sources.

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