How the Telephone Works
Experimental animation produced by GPO to explain telephone systems to the public.
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| Release Date | June 15, 1938 | |
|---|---|---|
| Status | Released | |
| Original Title | How the Telephone Works | |
| Runtime | 7min | |
| Budget | — | |
| Revenue | — | |
| Language | English | |
| Original Language | English | |
| Production Countries | United Kingdom | |
| Production Companies | GPO (General Post Office) Film Unit | |
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