Telegraph transmission : series R recommendations

Telegraph services terminal equipment : series S recommendations

PLENARY ASSEMBLY, IX, Melbourne, 1988; UIT

Geneva: ITU, 1989

XI, 281 p. ; 30 cm

Blue Book. Fasc. VII.1; Vol. VII

92-61-03591-4

Vária

Serviços-de-Telecomunicações; Serviço-Telegráfico

1989

Material Textual Impresso

ENG