A portable radio telephone set comprises a telephone number generating apparatus and a telephone number transmitting apparatus which are preferably contained in a pencil shaped body. The telephone number generating means generates a telephone number signal, for instance, by sensing the motion of a ball...http://www.google.fr/patents/US5301222?utm_source=gb-gplus-shareBrevet US5301222 - Portable radio telephone set for generating pattern signals representative of alphanumeric letters indicative of a telephone number
Portable radio telephone set for generating pattern signals representative ...
