There are two major doctrinal devices employed to place limits on the scope of copyright:

Kirstin Thompson argued that exposition was a major formal device in the film.

The roll was the major technical device used, and one significant pattern was simply rolling on alternate beats.

BUT its major thematic device is effective, and would not come naturally to a music-focused jazz historian.

He's improved or invented half a dozen major devices in use throughout the galaxy, including the best lock suppressor made.

Esna now supports all major mobile devices and tablets.

At its investor day late last year, Nokia hinted it would produce major new devices this year.

A switching system with major devices constructed of semiconductor components.

Such swaps are a major device for reducing debt under the new Brady plan.

Progressive taxation coupled with growth of public employment was a major device for deconcentrating wealth.