Gen: Documentar
Stele:
echipaj:
Țară: United States of America
Limba: English
Studio: Audio Productions Inc.
Durata de functionare: 10 minute
Calitate: HD
Publicat: Jan 01, 1951
IMDb: 10
Cuvinte cheie:technology, telephone, educational, instructional video, how to, long distance telephone, telecommunications
