Yazar
international telegraph bureau
11 cilt bulundu.
International Telegraph Bureau, Bern. Telegraph Section · Yayınevi bilinmiyor
11 sayfa · 1926
Kategori yok
International Telegraph Bureau, Bern. · Bureau international de' Union télégraphique
145 sayfa · 1913
Wireless Telegraph
International Telegraph Bureau, Bern. · [Imprimerie coopérative de Berne]
112 sayfa · 1915
Congresses / International Telegraph Union / Telegraph
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,
Switzerland) International Telegraph Bureau (Bern · The Bureau
327 sayfa · 1921
Telegraph stations / Directories
Switzerland) International Telegraph Bureau (Bern · International Bureau of the Telegraph Union
247 sayfa · 1929
Wireless Telegraph / Directories / Radio stations
International telecommunications bureau, International telegraph and telephone conference (1938 Cairo) · Bureau de l'Union internationale des tʹelʹecommunications
Sayfa sayısı yok · 1938
Telephone (International law) / Congresses / Telegraph (International law)
Bern International Telegraph Bureau, European radio conference (1933 Lucerne) · Bureau international de l'Union télégraphique
40 sayfa · 1942
European radio convention (1933)
International Telephone And Telegraph Corporation. Bureau of information Pro-España · Yayınevi bilinmiyor
15 sayfa · 1926
Kategori yok
Berne International Telegraph Bureau, D.C. 1927 (2d revisional conference) International radiotelegraph conference Washington · Bureau international de l'union télégraphique
Sayfa sayısı yok · 1928
Revisions, 1927 / Radio (International law) / Congresses / International radiotelegraph convention, 1906