Alphabetic keyboard for small electronic equipment has two opposed blocks of keys, each corresponding to half typewriter keyboard so they can be operated by both hands in holding grip

摘要

The keyboard is mounted on the rear of the equipment in two opposed blocks of keys, each corresponding to one half of a typewriter keyboard, so that they can be operated by both hands in a holding grip. Each two adjacent keys are combined into a multiple key with a concave surface for operation by the same finger.