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    How to become a wireless operator a practical presentation of the theory of electrical waves, their propagation, and their adaptation to wireless communication, including simple an... por Hayward, Charles Brian 1876-

    Publicado 1918
    Libro

    How to become a wireless operator a practical presentation of the theory of electrical waves, their propagation, and their adaptation to wireless communication, including simple and clear instructions how to operate wireless devices and how to comply with government requirements for operators

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