Steelworkers v. Warrior Gulf Co.

Holding that grievance machinery “is at the very heart of the system of industrial self-government” and the courts should not deny an order to arbitrate “unless it may be said with positive assurance that the arbitration clause is not susceptible of an interpretation that covers the asserted dispute”

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

Teamsters Union v. Oliver

In Teamsters v. Oliver, 358 U.S. 283 (1959), we held that a state antitrust law could not be used to challenge an employer-union agreement. Justice White's opinion in Jewel Tea explains, however, that Oliver held only that "[a]s the agreement did not embody a `"remote and indirect approach to the subject of wages'... but a direct frontal attack upon a problem thought to threaten the maintenance of the basic wage structure established by the collective bargaining contract,' [358 U.S.], at 294, the paramount federal policy of encouraging collective bargaining proscribed application of the state law.

Telegraphers v. Chicago N.W. R. Co.

Holding that a union's demand that no existing position be abolished except by agreement between employer and union is a "labor dispute" under Norris-LaGuardia

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."

Inland Steel Co. v. National Labor Rel. Board

Accepting the Board's conclusion "that the term `wages' . . . must be construed to include emoluments of value, like pension and insurance benefits, which may accrue to employees out of their employment relationship"

Teamsters Union v. Oliver

N.L.R.B. v. Rapid Bindery, Inc.

In NLRB v. Rapid Bindery Inc., 293 F.2d at 176, the Second Circuit held that "conjecture or rumor is not an adequate substitute for an employer's formal notice to a union of a vital change in working conditions.

Nat'l Labor Relations Bd. v. Houston Chronicle

Subcontracting union work