 |
 |
| Bell return |
| Biographical notes |
| Chonology bio. |
| History tlc. |
| History telegraph |
| History phone |
| History radio |
| History TV |
| History comp. |
| Scientists index |
| Bibliography |
Alexander Graham Bell | |||
| Edinbourg (Scotlkand) 3.3.1847- Beinn Bhreagh, Cape Breton Island-Nuova Scozia 2.8.1922) | |||
DOCUMENTS:
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| 1875 | |||
| | |||
| 1879 | 16 01 1879 US213090 ELECTRIC
SPEAKING-TELEPHONES (1) | ||
| 1879 | 16
01 1879 US213090
ELECTRIC SPEAKING-TELEPHONES (2) | ||
| 1879 | 17 07 1879 US220791 TELEPHONE-CIRCUITS
(1) | ||
| 1879 | 17
07 1879 US220791
TELEPHONE-CIRCUITS (2) | ||
|
| |||
| 1899 | |||
| | |||