herman wall durdhvani

herman wall telephone, jyala "visheshadhikarprapt phone" asehi mhanatat, haah durdhvanicha eka prakar hota, joou portugij shodhak maximiliano augusto herman yane 1880 madhye tayar keela hota. durdhvani sakriy karnyasathi batanancha agraganya vapar portugalchya mukhya shaharanmadhye sarvajanik marg ughadanyat moolbhut bhoomika bajavat hota. durdhvani duheri iyarpisdware tayar keela gela hota, joou lamb lavchik nalikanni banavala gela hota aanee yantrachya mukhya bhagavar eka transmitter basavala gela hota.
tyacha shodhak maximiliano augusto herman (1832-1913) yane uttar aanee purv portugij railway companysathi () telegraph lines nirikshak mhanoon kaam kele. nantar tyanni lisbanmadhye achook vadyanchya nirmitisathi samarpit eka karyashala suru kelee.

