1. | The construction of telephone lines / A. MoirAutor: Moir, A. Data Publicação: 1906 | ![]() | |
2. | Improvements in telephonic transmission over underground circuits by he insertion of inductance coils / T. PlummerAutor: Plummer, T. Data Publicação: 1906 | ![]() | |
3. | L'equilibre des fils electriques : conditions de pose / Auguste Pillonel; Administration des Télégraphes SuissesAutor: Pillonel, Auguste Data Publicação: [1906] | ![]() |