 telephony ‌ nu yavaru kanugonnaru ?
1876 loo ,  alegjaamdar graham bel rendava parikaramlo human swaram yokka spashtangaa ardhamayye pratiruupaanni utpatthi chese parikaram choose uunited stetes paetent ‌ nu pondina modati vyakti .
 juun  11, 2002 na uunited stetes house af representatives aamodinchina thirmaanam telephony aavishkaranalo antoniyo meyuki yokka krushi mariyu sahakaaraanni gurthinchaalani korindi .