首页> 外国专利> Device for the transmission of messages, instructions, train numbers or the like from a transmitting station to a receiving station in the case of iron path securing a directions

Device for the transmission of messages, instructions, train numbers or the like from a transmitting station to a receiving station in the case of iron path securing a directions

机译:在铁路线确保方向指示的情况下,用于从发送站向接收站发送消息,指令,列车号等的设备

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