Yazar
international telegraph conference paris 1925
5 cilt bulundu.
International Telegraph Conference (1925 Paris) · Printed & pub. by H. M. Stationery off.
156 sayfa · 1926
International telegraph convention, / Law and legislation / Revisions (1875 Regulations) 1925 / Telegraph
International Telegraph Conference (1925 Paris, France) · U.S. Govt. print. off.
Sayfa sayısı yok · 1928
Cipher and telegraph codes
International Telegraph Union, International Telegraph Conference (1925 Paris) · Bureau international de l'Union télégraphique
Sayfa sayısı yok · 1925
Revisions (1875 Regulations) 1925 / Telegraph / Law and legislation / Telegraph (International law) / Congresses
Bern International Telegraph Bureau, International telegraph conference Paris 1925 · Bureau international de l'Union télégraphique
178 sayfa · 1926
Revisions (1875 Regulations) 1925 / Telegraph / Law and legislation / International telegraph convention,
International Telegraph Conference, Paris, 1925 (Revision of Regulations) · U.S. Govt. Print. Off.
Sayfa sayısı yok · 1928
Cipher and telegraph codes