The upper shell covers the upper end of the lower shell.

The computing device may include an upper shell comprising an upper boss protruding from the upper shell, the upper boss defining a cavity.

A container of the clamshell type, with an upper and lower shell, the lower shell having a footing and the upper shell having a platform.

A shell of the ultra-thin telephone receiver comprises an upper shell and a lower shell.

The shell seat consists of an upper shell (2) and a lower shell (3).

The base board has an upper shell (4), an intermediate shell (5), and a lower shell (6).

The main body includes an upper shell (1), a lower shell (2) and a handle (3) installed on one side of the upper shell and the same side of the lower shell.

The shell portion has a lower shell portion, a central shell portion, and a top shell portion.

The base (10) comprises an upper shell (11) and a lower shell (12).

The key container is assembled from an upper and a lower shell.

The upper clamshell and the lower clamshell are movably connected.

A gyratory crusher topshell (100) and topshell assembly comprising an outer crushing shell (1000) and optional intermediate spacer ring (400).

The upper shell (108) has at least one upper plug chamber, and the lower shell (110) has at least one lower plug chamber.

The oxygen generator is characterized in that the generator comprises a shell, and the shell comprises an upper shell and a lower shell.

The top side of the top shell is provided with a flat supporting surface, which runs parallel to the support surface (3) of the bottom shell.