Republic Aviation Corp. v. Board

Finding an absence of special circumstances where employer failed to introduce evidence of "unusual circumstances involving their plants."

Labor Board v. Mackay Co.

Holding that an employer may replace striking workers with others to carry on business so long as the employer is not guilty of unfair labor practices

Labor Board v. Fansteel Corp.

In Fansteel, the Board awarded reinstatement with backpay to employees who engaged in a "sit down strike" that led to confrontation with local law enforcement officials.

Auto. Workers v. Wis. Board

Holding that issuance of injunction by state labor relations authority that orders state employees back to work does not violate Thirteenth Amendment because employees had the right to quit employment

Labor Board v. Rockaway News Co.

Holding that employees may bargain away their statutory right to strike

Labor Board v. Electrical Workers

Upholding discharge where employees publicly disparaged quality of employer's product, with no discernible relationship to pending labor dispute

Bus Employees v. Wisconsin Board

In Bus Employees v. Wisconsin Board, 340 U.S. 383, this Court held that the Wisconsin Public Utility Anti-Strike Law, which made it a misdemeanor for public utility employees to engage in a strike which would cause an interruption of an essential public utility service, conflicted with the National Labor Relations Act and was therefore invalid under the Supremacy Clause of the Constitution.

Automobile Workers v. O'Brien

Holding that federal labor law does not "permit concurrent state regulation of peaceful strikes for higher wages. Congress occupied this field and closed it to state regulation."

National Labor Relations Bd. v. Condenser Corp.

Nat'l Labor Relations Bd. v. Thayer Co.

In Thayer, the court first announced that if the activity causing dismissal was protected under § 7 of the Act then denial of reinstatement was unlawful. If the activity was unprotected under § 7, however, the legality of the denial was to be determined according to a balancing test.