Le Téléphone, le Microphone et le Phonographe| author | Du Moncel, Th., comte |
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| download | pg27574.pdb (1011K) |
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| language | French |
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| categories | Microphone
Phonograph
Telephone
TK: Electrical engineering. Electronics. Nuclear engineering |
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| copyright status | Public domain in the USA. |
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| source | Project Gutenberg
EBook #27574
2008-12-20 |
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