Instructions for testing telegraph lines and the technical arrangements⁺ of offices

originally written on behalf of the government of India, under the orders of the director-general of telegraphs in India

Verfasser / Beitragende:
by Louis Schwendler
Ort, Verlag, Jahr:
Lond. : Trübner, 1878-1880
Beschreibung:
2 vol.
Format:
Buch
Ausgabe:
2. ed. / authorized by H.M. Secretary of State for India...
ID: 144800195