BALLPOINT KEYS

depressed, circular, sculptured centers suitable for using a ballpoint pen or stylus-type instrument to depress the keys; the ballpoint keys can replace typical keys designed for use with human fingers to enter alphanumeric and functional data; typical uses are computer keyboards, keypads, data entry devices, namely calculators, pagers, two-way pagers, facsimile machines, electronic games, organizers and schedulers; the ballpoint keys are useful with various languages in addition to English