Get yourself a copy of the country studies for Denmark, Norway, and Sweden from AACRAO.
http://www.aacrao.org/publications/catalog/wes.cfmThese guides discuss in detail how a Scandinavian degree transfers to the United States and also mention how doctorates from the various countries are usually treated. Many universities use these books to determine whether to admit a student or hire an employee, but the books are just guides. At the end, the university (or state law as it were) has the final word.