Direct distance dialing.
Saved in:
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Germany :
Siemens,
1963.
|
| Subjects: |
| Physical Description: | 61 p. : illus. |
|---|
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Germany :
Siemens,
1963.
|
| Subjects: |
| Physical Description: | 61 p. : illus. |
|---|