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| Ret Baird |
| Documents |
| Chronologie tlc |
| Chronologie télégraphe |
| Chronologie téléphone |
| Chronologie radio |
| Chronologie TV |
| Chronologie comp. |
| Index Scientifiques |
| Bibliographie |
| John Logie
Baird |
| Documents
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| Brevet USA 1735946 Television and like sistem 07 ottobre 1927 |
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