Taariikhda: Xisaabiyaha ayaa leh taariikh in ka badan 100 sano.Sanadkii 1866, German Siemens ayaa ikhtiraacay koronto-dhaliye.Afar sano ka dib, Canadian, Henry Martinson, patented farsamada dheelitirka, bilaabay warshadaha.Sanadkii 1907dii, Dr. Franz Lawa...
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