A proprietary name for: a type of gun or (originally) gun barrel.

The proprietary name of a kind of typewriter that has interchangeable typefaces. Also, a kind of type-composing machine with similar operation.

A machine for typing in shorthand, now often used in transcribing speech to text for deaf people. Also: the system of shorthand used with this…

A proprietary name for: a make of typewriter. Hence (more widely): any (esp. portable) typewriter.

The proprietary name of a kind of electric typewriter incorporating a tape-punch and a tape-reader.

A proprietary name for a kind of electric typewriter.