翻訳と辞書 |
Herrmann Wall Phone : ウィキペディア英語版 | Herrmann Wall Phone
The Herrmann wall phone was a type of telephone, created by the Portuguese inventor, Maximiliano Augusto Herrmann, in 1880. The pioneering use of buttons to activate the telephone played a fundamental role to the opening of public lines in the main cities of Portugal.〔http://www.fundacao.telecom.pt/en/Home/HistoryandHeritage/PTsHistory/HistoricalEquipment/Detail/tabid/350/itemId/545/parId/346/Default.aspx〕 The telephone was composed by a double earpiece, made with long flexible tubes, and a transmitter fixed to main body of the machine. Its inventor, Maximiliano Augusto Herrmann, worked for the North and East Portuguese Railway Company (Portuguese: ''Companhia dos Caminhos-de-ferro do Norte e Leste'') as telegraph lines inspector. He later opened a workshop dedicated to the production of precision instruments. ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Herrmann Wall Phone」の詳細全文を読む
スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|