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新形小手動交換機
新形小手動交換機
Paper
図書
國友常蔵編
電氣通信學會
1940.11
Other Libraries in Japan
通信工學通俗叢書
通信工學通俗叢書
Paper
図書
電氣通信學會
Other Libraries in Japan
Related Material
...換 音聲周波搬送式多重電信法
新形小手動交換機
自働局手働局相互接續装置 音聲と聽覚 市内電話ケーブル配線...
實用通信工學叢書
實用通信工學叢書
Paper
図書
實用通信工學叢書委員會編纂
電気通信学会
Other Libraries in Japan
Related Material
...内電話ケーブル線路 宇宙通信
新形小手動交換機
電信局内裝置工事及保守 無線周波測定 通信機器の防湿処理 ...
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