United States. Patent Office. Office of Search Systems and Documentation
VIAF ID: 153578319 ( Corporate )
Permalink: http://viaf.org/viaf/153578319
Preferred Forms
5xx's: Related Names (2)
Works
Title | Sources |
---|---|
Concordance ... 1971. | |
Concordance: [guide for relating the] United States patent classification to international patent classification. |