Federal Constitutional Court of Germany was created in 1951.

None. Unionizing became lawful because of a 1935 federal STATUTE, the National Labor relations Act.

federal district court, federal court of appeals court,and the U.S. supreme court.

The Supreme Court overturned the Keating-Owen Child Labor Act in 1918 because it deemed the federal government's regulation of child labor as unconstitutional. The Court ruled that the Act violated the Tenth Amendment and infringed upon the rights of states to regulate labor within their borders.

Kenneth Hanf has written:

'Networks of implementation and administration for manpower policies at the local level in the Federal Republic of Germany and Sweden'

'The administration and implementation of labor market policy at the local level in Sweden and the Federal Republicof Germany'