Improvements in automatic telephone exchanges - a communication by the Strowger Automatic Telephone Exchange, 947-949 Rookery, Chicago, County of Cook and State of Illinois, United States of America
- Författare
- William Phillips Thompson
- Språk
- Engelska
| Förlag | År | Ort | Om boken | ISBN |
|---|---|---|---|---|
| Printed for Her Majesty's Stationary Office, by Malcomson & Co. | 1897 | Storbritannien, Redhill | 11 sidor., [6] pl.-bl. |