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Éditeur(s): American Telephone and Telegraph Co.]
Contributeur(s): Biodiversity Heritage Library
Collection(s): Biodiversity Heritage Library
Catégorie: Technology and Applied Science
Le sujet(s): Science--periodicals. , Technology--Periodicals. , Telecommunication--Periodicals. , Electric engineering--Periodicals. , Communication--Periodicals. , Electronics--Periodicals.
CallNumber: 621.38/05
mots-clés: Telecommunication Periodicals. Electric engineering Periodicals. Communication Periodicals. Electronics Periodicals. Science Periodicals. Technology Periodicals.