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

'addit':71 'alphanumer':35 'ballpoint':9,21,63 'calcul':49 'center':4 'circular':2 'comput':42 'data':38,45 'depress':1,17 'design':27 'devic':47 'electron':57 'english':73 'enter':34 'entri':46 'facsimil':55 'finger':32 'function':37 'game':58 'human':31 'instrument':15 'key':19,22,26,64 'keyboard':43 'keypad':44 'languag':69 'machin':56 'name':48 'organ':59 'pager':50,54 'pen':10 'replac':24 'schedul':61 'sculptur':3 'stylus':13 'stylus-typ':12 'suitabl':5 'two':52 'two-way':51 'type':14 'typic':25,39 'use':7,29,40,66 'various':68 'way':53

BALLPOINT KEYS

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